A Philippine Legal Article
Workplace discipline is one of the most contested areas of labor law in the Philippines. Employers have the right to regulate conduct, impose company rules, investigate violations, and penalize employees when discipline is justified. But that right is not absolute. It is limited by law, by due process, by standards of fairness, and by the rule that penalties must not be arbitrary, discriminatory, retaliatory, or grossly disproportionate.
A recurring problem in actual workplaces is unequal enforcement: two employees commit the same or similar violation, but only one is punished; a favored employee is excused while another is suspended or dismissed; rules are suddenly enforced against a disfavored worker after years of selective tolerance; or a disciplinary case is used as a pretext to remove someone who complained, unionized, reported wrongdoing, or fell out of management’s favor.
In Philippine labor law, unequal enforcement can matter greatly. It can help show bad faith, discrimination, arbitrariness, lack of substantial evidence, disproportionality of penalty, retaliation, constructive dismissal, union discrimination, or even illegal dismissal. It does not automatically make every discipline case unlawful, because employers may distinguish between employees based on real differences in role, record, intent, damage caused, trust level, or surrounding facts. But when the employer cannot justify the difference, selective discipline becomes legally vulnerable.
This article explains the governing principles, the rights of employees, the defenses of employers, the remedies available, and the proper forum for complaints in the Philippine setting.
I. The legal framework in the Philippines
Workplace discipline in the Philippines generally sits at the intersection of the following:
- the Labor Code of the Philippines and its implementing rules;
- constitutional guarantees of due process, security of tenure, and protection to labor;
- management prerogative, as recognized in labor law and jurisprudence;
- company codes of conduct, manuals, handbooks, memoranda, and policies;
- collective bargaining agreements and grievance procedures where a union exists;
- special laws prohibiting discrimination or retaliation in particular settings;
- decisions of Labor Arbiters, the NLRC, the Court of Appeals, and the Supreme Court.
The most important baseline rule is this: An employee may be disciplined only for a lawful cause, through lawful procedure, and in a manner that is not arbitrary, discriminatory, or grossly unfair.
That means workplace discipline is judged through at least four lenses:
- Was there a valid rule or lawful basis?
- Was the employee actually shown to have committed the violation?
- Was procedural due process observed?
- Was the penalty imposed fairly and consistently?
Unequal enforcement usually comes in at the fourth lens, but it can also affect the second and third.
II. Management prerogative: broad, but not unlimited
Philippine law recognizes management prerogative, which includes the right to hire, assign work, supervise performance, investigate misconduct, and impose disciplinary action. Courts generally do not interfere with business judgment unless it is exercised:
- in bad faith,
- in a discriminatory manner,
- in a manner contrary to law, morals, public policy, or public order,
- in violation of due process,
- or so unreasonable as to amount to oppression.
So an employer may create rules on attendance, tardiness, insubordination, conflict of interest, data privacy, harassment, social media use, IT security, cash handling, inventory control, confidentiality, dress code, and performance discipline. But management prerogative does not authorize punishment that is fabricated, retaliatory, selectively enforced without justification, or imposed without fair notice and hearing.
A useful shorthand is this: The employer may discipline, but it may not persecute.
III. Security of tenure and the requirement of just or authorized cause
Under Philippine law, employees enjoy security of tenure. They cannot be dismissed except for:
- just causes attributable to employee fault, such as serious misconduct, willful disobedience, gross and habitual neglect, fraud or willful breach of trust, commission of a crime against the employer or its representatives, and analogous causes; or
- authorized causes such as redundancy, retrenchment, closure, disease, and similar business or legally recognized grounds.
Unequal enforcement usually arises in just-cause discipline, especially where an employer invokes misconduct, dishonesty, insubordination, breach of policy, absenteeism, or loss of trust and confidence.
For lesser penalties like reprimand or suspension, the employer still needs a valid basis and due process, even though the dispute may not always be framed as illegal dismissal. When the punishment becomes severe enough to force resignation, it may become a constructive dismissal case.
IV. What “unequal enforcement” means in practical terms
Unequal enforcement happens when similarly situated employees are treated differently for the same or substantially similar conduct, without a legitimate reason. Common patterns include:
1. Selective punishment
Only one employee is charged, though many committed the same act.
2. Disparate penalties
Two employees commit the same violation, but one gets a warning while the other is suspended or dismissed.
3. Sudden strictness against one person
A rule long ignored is abruptly enforced only against an employee who recently complained, organized co-workers, filed a report, or had conflict with management.
4. Favoritism
Supervisors excuse favored employees, relatives, or friends, while disciplining disfavored workers.
5. Discrimination disguised as discipline
A disciplinary rule is applied more harshly because of sex, pregnancy, disability, union activity, age, religion, or protected complaints.
6. Penalty escalation without consistency
Prior infractions of others were treated leniently, but one employee’s first offense is treated as dismissible with no persuasive distinction.
7. Different standards for rank-and-file and managers without clear basis
Differential treatment is not always illegal, but the employer must show why the positions, duties, trust level, or consequences justify the difference.
V. Is unequal enforcement automatically illegal?
No. Unequal enforcement is not automatically unlawful just because outcomes differ. Employers may lawfully impose different penalties where there are real, material differences, such as:
- one employee was a supervisor or fiduciary employee;
- one had prior offenses and another was a first-time offender;
- one admitted the act and made restitution while another concealed or repeated it;
- one caused actual loss, safety risk, reputational damage, or legal exposure;
- one acted intentionally while another acted negligently;
- one was the principal actor and the other was merely present;
- the company rule itself classifies offenses by gravity;
- different departments had different operational risks or policies, if validly implemented.
The legal problem arises when the difference in treatment is not grounded on substantial distinctions and instead points to arbitrariness, bias, discrimination, or pretext.
So the key question is not simply: “Were others treated differently?”
It is: “Were they truly similarly situated, and if so, did the employer have a lawful, rational, and evidence-based reason for treating them differently?”
VI. The importance of company rules and notice to employees
A disciplinary case is stronger for the employer if the rule allegedly violated was:
- clearly written,
- lawful and reasonable,
- related to the employee’s work,
- properly disseminated,
- consistently implemented,
- and known or should reasonably have been known by employees.
An employer is in a weaker position when:
- the rule is vague;
- the rule was never distributed;
- it appears only in an internal memo never shown to employees;
- it was enforced only after conflict arose;
- it had long been tolerated and never meaningfully applied;
- or it is so broad that it invites selective targeting.
This matters because selective enforcement often thrives where policies are vague or inconsistently applied.
For employees, one of the best arguments in a discipline dispute is: “The company had no clearly communicated rule, or it enforced the rule inconsistently and only against me.”
That argument does not always win by itself, but it is powerful when supported by records, comparators, and chronology.
VII. Due process in workplace discipline: the twin-notice rule
For disciplinary action, especially dismissal, Philippine law requires procedural due process. The classic rule is the two-notice requirement plus opportunity to be heard.
First notice: notice to explain
The employee must be informed in writing of:
- the specific acts or omissions complained of;
- the company rule, policy, or ground violated;
- the possible penalty;
- and the opportunity to submit a written explanation, usually within a reasonable time.
This cannot be a vague accusation. It must state the charge with enough detail to allow meaningful defense.
Opportunity to be heard
The employee must have a genuine chance to respond. A formal hearing is not required in every case, but it becomes important where:
- facts are disputed,
- the employee requests it,
- the company rules provide for it,
- or fairness requires clarifying witness testimony or evidence.
Second notice: notice of decision
After considering the explanation and evidence, the employer must issue a written decision stating:
- the findings,
- the basis for liability,
- and the penalty imposed.
Where there is unequal enforcement, due process is also affected if the investigation itself was slanted: witnesses from one side were ignored, similarly situated employees were never investigated, CCTV or documents were selectively reviewed, or management had clearly predetermined the outcome.
VIII. Substantial evidence: the employer’s burden
In labor cases, the employer bears the burden of proving that dismissal or discipline was for a valid cause. The evidentiary standard is generally substantial evidence: relevant evidence that a reasonable mind might accept as adequate to support a conclusion.
This is lower than proof beyond reasonable doubt, but it still requires real evidence. Mere suspicion, rumor, or uncorroborated accusation is not enough.
In selective enforcement disputes, employees often challenge not only the sufficiency of proof but also the credibility of the employer’s narrative:
- Why was only one person investigated?
- Why were other involved employees excluded?
- Why was the complainant or whistleblower targeted immediately after protected activity?
- Why is the penalty harsher than prior cases?
- Why were exculpatory records ignored?
These questions can undermine the employer’s claim of fairness and good faith.
IX. The doctrine of proportionality and the penalty imposed
Even if an employee committed a violation, the penalty must still be proportionate. Not every infraction justifies dismissal. Labor law and equity recognize that the punishment must fit the offense, considering factors like:
- nature and gravity of the act,
- position held,
- years of service,
- prior record,
- intent,
- actual damage,
- likelihood of recurrence,
- and surrounding circumstances.
Selective discipline often appears through disproportionality. For example:
- others were warned for similar attendance lapses, but one employee was terminated;
- a first offense is suddenly treated as gross misconduct;
- the company bypasses progressive discipline only for a targeted employee.
Employers may still justify harsher penalties in some cases, especially for serious dishonesty, violence, harassment, grave insubordination, or safety-critical breaches. But where others with similar cases received much lighter sanctions, disproportionality becomes significant evidence of arbitrariness.
X. Progressive discipline and consistency
Many employers adopt progressive discipline, such as coaching, verbal warning, written warning, suspension, then dismissal. This is not required in exactly the same format in every workplace, especially for grave offenses that justify immediate dismissal. But where a company has an established disciplinary ladder, arbitrary deviation from it may be challenged.
Inconsistency is especially suspicious when:
- the employee had no prior record;
- the offense is classified as minor or less grave;
- the handbook prescribes lesser penalties for the first offense;
- or the employer cannot explain why it skipped intermediate sanctions only for one worker.
Consistency matters because it supports the legitimacy of company discipline. Inconsistency invites the inference that the process was not really about the rule, but about the person.
XI. Unequal enforcement as evidence of bad faith, discrimination, or pretext
In practice, selective discipline is often not treated as a standalone cause of action with a single label. Instead, it serves as evidence supporting broader claims, such as:
1. Illegal dismissal
The employer claims a just cause, but selective enforcement suggests the alleged violation was a pretext.
2. Constructive dismissal
An employee is not formally fired, but is singled out for repeated baseless notices, humiliating suspensions, demotion, isolation, or impossible conditions, making continued work unbearable.
3. Retaliation
The discipline follows a complaint, report, demand for benefits, testimony, union activity, safety complaint, or protected disclosure.
4. Union discrimination or unfair labor practice
If the harsher treatment is connected to self-organization, union membership, collective bargaining activity, or anti-union targeting.
5. Discrimination under special laws
If the pattern shows unequal discipline based on a protected status.
6. Moral and exemplary damages
When dismissal or discipline was attended by bad faith, fraud, oppression, or acts contrary to morals, good customs, or public policy.
XII. Anti-discrimination dimensions in disciplinary enforcement
Unequal discipline can cross into unlawful discrimination. In the Philippine context, that may arise under different laws depending on the protected category and facts.
Potential examples include:
- harsher punishment because an employee is a woman, pregnant, or recently returned from maternity leave;
- different treatment because of disability;
- stigma-based discipline tied to HIV status;
- discriminatory enforcement against older workers;
- reprisals linked to religion or marital status where applicable legal protections or constitutional standards are implicated;
- discipline rooted in sexual harassment complaints or Safe Spaces complaints rather than the actual alleged offense;
- anti-union targeting.
Not every unfairness is statutory discrimination. But where the selective enforcement maps onto a protected trait or protected activity, the case becomes much stronger.
XIII. Unequal enforcement and union activity
Where a union or organizing effort is involved, selective discipline becomes especially serious. Employers may not interfere with employees’ right to self-organization. If an employee is singled out for discipline because of:
- union membership,
- organizing activity,
- serving as an officer,
- filing a grievance,
- acting as a witness,
- or participating in collective bargaining,
the issue may rise to unfair labor practice, not just ordinary discipline. In a unionized workplace, the CBA and grievance machinery are highly relevant. Many disputes must first pass through the grievance procedure and, when unresolved, voluntary arbitration, depending on the nature of the issue.
So before filing outside, a unionized employee should check:
- whether the matter is covered by the CBA;
- whether a grievance procedure is mandatory;
- whether the dispute involves interpretation or implementation of the CBA or company personnel policies;
- and whether the claim is really illegal dismissal, ULP, labor standards, or a grievable disciplinary dispute.
Forum matters.
XIV. Common employee scenarios
A. “Others did the same thing, but only I was suspended.”
This may support a claim of selective enforcement. The employee should gather records showing who did what, when, under what rule, and what penalty each received.
B. “The company says I violated a rule, but nobody enforced that rule before.”
This may show lack of fair notice or inconsistent enforcement, especially if the rule was tolerated for years.
C. “They charged me after I complained about unpaid overtime.”
This timing may support retaliation or bad faith. The closer the disciplinary action follows the complaint, the more significant the chronology may become.
D. “I was not dismissed, but they keep issuing notices until I resign.”
This may amount to constructive dismissal if the campaign is clearly oppressive and intended to force separation.
E. “My co-worker and I committed the same error, but I was fired because I am a supervisor.”
Different treatment may be lawful if the employer proves the position involved higher trust or greater responsibility.
F. “Only union members are being written up.”
That raises serious self-organization and unfair labor practice concerns.
XV. What evidence should an employee preserve?
An employee challenging unequal enforcement should preserve as much contemporaneous evidence as possible, including:
- notice to explain, suspension memos, decision notices;
- company handbook, code of conduct, and policy manuals;
- prior memoranda showing how similar cases were treated;
- attendance records, incident reports, audit reports, CCTV references, emails, chats, and task logs;
- names of comparators and their positions;
- proof of prior tolerance or accepted practice;
- chronology showing proximity to complaints, union activity, leave, whistleblowing, or conflict with management;
- witness statements from co-workers;
- payroll records if suspension or dismissal affected pay;
- resignation letter, if forced;
- grievance filings, HR correspondence, and meeting notes.
A strong selective enforcement case depends heavily on comparators and timing. The more the employee can show “same conduct, different treatment, no valid distinction,” the better.
XVI. Internal remedies before external filing
Before filing a case, an employee may use internal processes, especially where immediate relief is possible.
1. Written explanation and rebuttal
Respond to the notice to explain fully, calmly, and specifically. Deny incorrect allegations. Cite the rule or penalty provisions. Point out comparators if selective enforcement exists.
2. Request for hearing or conference
Where facts are disputed, request a hearing and identify witnesses or records.
3. Grievance mechanism or appeal
Many companies provide internal appeal, reconsideration, peer review, ethics committee review, or grievance channels.
4. Union grievance procedure
In unionized settings, the CBA may require filing through the grievance machinery first.
Using internal remedies is often helpful, though not always legally required before a formal labor case. It creates a record and gives the employer a chance to correct obvious unfairness.
XVII. What remedies are available to employees?
The remedy depends on the form of discipline and the forum.
A. If the employee was dismissed
Possible claims and remedies include:
- illegal dismissal;
- reinstatement without loss of seniority rights;
- full backwages;
- separation pay in lieu of reinstatement when reinstatement is no longer feasible;
- restoration of benefits;
- damages and attorney’s fees where warranted.
B. If the employee was suspended, demoted, or unfairly penalized but not dismissed
Possible relief may include:
- nullification of disciplinary action;
- payment of wages lost during illegal suspension;
- restoration of rank, benefits, or assignments;
- correction of personnel records;
- damages in proper cases.
C. If the employee resigned because discipline became intolerable
The claim may be constructive dismissal, with remedies similar to illegal dismissal if proven.
D. If the discipline involved unpaid wages or labor standards violations
Separate claims for:
- unpaid wages,
- overtime,
- holiday pay,
- premium pay,
- service incentive leave pay,
- 13th month pay,
- illegal deductions,
- final pay issues,
may be filed in the proper forum.
E. If the case involves union discrimination or unfair labor practice
Additional relief under labor relations principles may apply.
XVIII. DOLE complaint or NLRC case: where should the employee go?
This is one of the most misunderstood parts of Philippine labor practice.
1. DOLE is not always the proper forum for disciplinary disputes
Many employees say they want to “file a DOLE complaint” even when the real issue is illegal dismissal or wrongful discipline. Strictly speaking, disputes over the legality of dismissal are generally handled through the National Labor Relations Commission system, beginning with the Labor Arbiter, not through ordinary DOLE labor standards enforcement.
So if the employee was terminated and is challenging the validity of the dismissal, the usual route is an illegal dismissal complaint before the Labor Arbiter.
2. DOLE still matters in several ways
DOLE may still be relevant through:
- SEnA or the Single Entry Approach for mandatory 30-day conciliation-mediation before formal adjudication in many labor disputes;
- labor standards complaints under DOLE’s visitorial and enforcement powers;
- assistance by DOLE regional offices in certain employment disputes;
- anti-sexual harassment or safe workplace referrals, depending on context;
- inspection and enforcement where the issue includes wages, hours, and basic labor standards;
- public assistance and mediation.
3. SEnA often comes first
Before many labor cases proceed formally, parties undergo SEnA conciliation-mediation. This can occur through DOLE or the appropriate agency. It is meant to encourage settlement before litigation.
4. NLRC/Labor Arbiter is the key forum for illegal dismissal
For wrongful termination, constructive dismissal, and related money claims arising from dismissal, the Labor Arbiter is typically the proper adjudicator.
5. DOLE labor standards complaints are different
If the issue is unpaid wages, overtime, holiday pay, underpayment, nonpayment of benefits, or similar labor standards matters, DOLE may exercise enforcement powers in appropriate cases. But once the core issue becomes the validity of termination, that is generally a case for the Labor Arbiter.
A simple working rule is this:
- Illegal dismissal / constructive dismissal / validity of termination → usually Labor Arbiter / NLRC process
- Pure labor standards violations → often DOLE
- Settlement efforts before formal filing → often SEnA
XIX. Can unequal enforcement be the basis of an actual complaint?
Yes, but usually not under the label “unequal enforcement” alone. It is usually framed as part of one or more of the following:
- illegal dismissal;
- constructive dismissal;
- money claims with retaliatory context;
- unfair labor practice;
- discrimination;
- damages arising from bad-faith disciplinary action;
- challenge to illegal suspension or demotion;
- grievance/CBA violation.
The employee’s complaint typically alleges facts such as:
- there was no valid cause;
- the evidence was insufficient;
- due process was defective;
- others similarly situated were not charged or were treated more leniently;
- the discipline was retaliatory or discriminatory;
- the penalty was excessive;
- the real reason for discipline was unlawful.
XX. How Labor Arbiters and tribunals tend to analyze selective discipline
In practice, a tribunal examining unequal enforcement asks questions like:
- What exactly was the offense?
- What rule was violated?
- Was the rule communicated and reasonable?
- What evidence shows the employee committed the act?
- Who else committed similar acts?
- Were those employees truly similarly situated?
- Were they in the same role, under the same policy, with similar records and consequences?
- What penalty did each receive?
- What explanation does management give for the difference?
- Is that explanation credible and supported by evidence?
- Did the discipline come after a complaint, dispute, or protected activity?
- Was the penalty proportionate?
- Did the process reflect fairness or a predetermined result?
This kind of analysis is highly factual. Documentary proof matters more than general assertions that “others also did it.”
XXI. Employers’ best defenses to claims of unequal enforcement
From the employer’s side, the strongest responses usually are:
- the comparator employees were not actually similarly situated;
- the disciplined employee held a higher-trust position;
- there were prior infractions in the employee’s record;
- the employee caused greater harm;
- the employee acted intentionally or deceptively;
- the policy had changed prospectively and was clearly re-implemented;
- the employer had evidence only against the disciplined employee;
- the others were also disciplined, but the employee lacked access to those confidential records;
- the case involved a unique aggravating circumstance;
- progressive discipline was properly bypassed because the offense was grave.
These defenses can succeed, but only if supported by credible records and consistent reasoning.
XXII. Confidentiality and comparator evidence
A practical problem is that an employee may suspect selective discipline but not have access to other employees’ disciplinary records because those are confidential. That does not end the case. The employee may still rely on:
- testimony,
- observed outcomes,
- payroll records showing who was suspended,
- company announcements,
- witness accounts,
- circumstantial evidence,
- admissions by HR or supervisors,
- patterns in enforcement,
- and records produced during proceedings.
Tribunals can consider reasonable proof even if the employee lacks full access to internal HR files.
XXIII. Unequal enforcement and constructive dismissal
Sometimes the employer does not terminate the employee outright. Instead, management begins a campaign of selective notices, impossible standards, targeted investigations, humiliating transfers, baseless suspensions, or exclusion from work. When these acts are so unreasonable, hostile, or unbearable that a reasonable employee feels compelled to resign, the law may treat the resignation as constructive dismissal.
Selective discipline is a frequent ingredient in constructive dismissal claims, especially when combined with:
- demotion in rank or pay,
- removal of duties,
- ostracism,
- retaliatory scheduling,
- public humiliation,
- constant written accusations without fair basis.
The key is whether the employer’s conduct effectively left the employee with no real choice but to resign.
XXIV. Preventive suspension versus disciplinary suspension
Philippine labor law distinguishes between preventive suspension and disciplinary suspension.
Preventive suspension
This is temporary removal from work during investigation when the employee’s continued presence poses a serious and imminent threat to life, property, or the business investigation. It is not supposed to be punishment.
Disciplinary suspension
This is a penalty imposed after a finding of violation.
Employers sometimes misuse preventive suspension as a pretext to punish only one targeted employee while others remain at work. If preventive suspension is imposed selectively without basis, or extended improperly, it can be challenged.
XXV. Resignation under pressure and quitclaims
Employees sometimes resign after unequal discipline and sign quitclaims or waivers. These are not always conclusive. In labor law, quitclaims are scrutinized closely. They may be disregarded when:
- the waiver was involuntary,
- the employee was coerced or misled,
- the consideration was unconscionably low,
- the resignation was actually forced,
- or the employer used disciplinary pressure to procure the separation.
An employee who resigned due to selective and oppressive discipline may still pursue a constructive dismissal theory if facts support it.
XXVI. Damages and attorney’s fees
Where the employer acted in bad faith, oppressively, or in a manner contrary to law or morals, the employee may seek:
- moral damages,
- exemplary damages,
- and attorney’s fees in appropriate cases.
These are not automatic. They usually require proof that the employer’s conduct went beyond mere error and reflected bad faith, malice, or wanton disregard of rights. Selective discipline tied to retaliation, humiliation, fabricated charges, or discriminatory targeting may support such relief.
XXVII. Prescription and timeliness
Employees should act promptly. Labor claims are subject to prescriptive periods, and delay can weaken evidence even where the legal claim is still timely. Since the correct period can vary depending on the nature of the action, the safest practical rule is to move quickly after dismissal, suspension, forced resignation, or denial of benefits.
Delay is especially costly in selective enforcement cases because comparator evidence, witness memory, and internal records become harder to obtain over time.
XXVIII. Practical drafting points for a complaint
A well-prepared complaint involving unequal discipline usually states:
- the employee’s position, tenure, salary, and record;
- the alleged offense and penalty imposed;
- the exact company rule invoked;
- facts showing the charge is false, exaggerated, or unsupported;
- details of similarly situated employees and how they were treated;
- chronology linking the discipline to complaints, union activity, leave, or conflict;
- procedural defects in the investigation;
- why the penalty is disproportionate;
- and the remedies sought.
Specificity matters. General statements like “management is unfair” are less effective than concrete allegations with dates, names, notices, and comparator facts.
XXIX. Guidance for employers: how to avoid unlawful unequal enforcement
From a compliance perspective, employers reduce risk by:
- maintaining clear and updated disciplinary policies;
- training supervisors on consistent implementation;
- documenting prior comparable cases;
- distinguishing cases only on real, provable differences;
- avoiding emotional or retaliatory discipline;
- observing twin-notice due process;
- reviewing proportionality of penalty;
- and checking whether a complaint implicates union rights, discrimination issues, whistleblowing, or labor standards retaliation.
A company that cannot explain why one employee was treated differently is exposed. Discipline should be principled, documented, and reviewable.
XXX. Bottom line
In the Philippine setting, unequal enforcement of workplace violations is legally significant. It can undermine the validity of discipline, support a claim of illegal dismissal or constructive dismissal, indicate retaliation or discrimination, and expose the employer to reinstatement, backwages, damages, and other relief.
Still, unequal treatment is not unlawful merely because outcomes differ. The decisive issue is whether the employer can show a legitimate, substantial, and good-faith basis for the distinction. If not, selective enforcement may be treated as arbitrariness or pretext.
For employees, the crucial tasks are to preserve notices, identify comparators, document timing, challenge due process defects, and file in the correct forum. For employers, the crucial discipline is consistency: similar cases should be treated similarly unless a real distinction can be clearly shown.
In forum terms, the most important practical point is this: not every workplace discipline dispute is a “DOLE complaint” in the strict sense. Where the issue is illegal dismissal or constructive dismissal, the usual path is through the Labor Arbiter/NLRC system, often after SEnA conciliation. Where the issue is labor standards, DOLE may be the proper avenue. Where a union or CBA is involved, the grievance machinery may also control.
The law allows discipline. It does not allow selective punishment dressed up as policy.