I. Introduction

In Philippine criminal procedure, a complaint-affidavit for physical injuries is the usual written, sworn statement executed by the offended party, a witness, or a law enforcement complainant to initiate the criminal process against a person who allegedly caused bodily harm. It is one of the most common initiating documents in cases involving violence, assault, mauling, fights, domestic confrontations, neighborhood disputes, road-rage incidents, workplace attacks, and similar acts resulting in injury.

A complaint-affidavit is not merely a narrative of what happened. It is a juridical document. It is used to establish probable cause during preliminary investigation or inquest-related proceedings, and in proper cases it supports the filing of the corresponding criminal information in court.

In the Philippine setting, the legal treatment of “physical injuries” depends on several factors, including:

the nature and gravity of the injury,
the means employed,
the duration of medical treatment or incapacity,
the existence of aggravating or qualifying circumstances,
whether the act falls under the Revised Penal Code or a special law,
whether the case is subject to barangay conciliation,
and whether the complaint is filed directly with the prosecutor, the police, or another competent office.

This article explains the legal framework, procedural rules, contents, documentary requirements, filing routes, evidentiary issues, and strategic considerations in filing a complaint-affidavit for physical injuries in the Philippines.

II. Legal Basis

A complaint-affidavit for physical injuries in the Philippines may be anchored on one or more of the following legal sources:

1. Revised Penal Code

The principal crimes of physical injuries are found in the Revised Penal Code (RPC), particularly the provisions on:

Serious physical injuries
Less serious physical injuries
Slight physical injuries
Maltreatment
Related crimes such as frustrated homicide, attempted homicide, or other felonies when the facts show intent to kill or a higher offense than physical injuries

The exact offense is not determined solely by the label used by the complainant. It is determined by the facts alleged and the evidence presented.

2. Rules of Criminal Procedure

The Rules of Criminal Procedure govern:

institution of criminal actions,
preliminary investigation,
inquest where applicable,
filing of complaints,
contents of affidavits,
and the prosecutor’s determination of probable cause.

3. Special Laws

A physical injuries case may also arise under special statutes, depending on the context, such as:

Republic Act No. 9262 if the physical harm forms part of violence against women and their children,
Republic Act No. 7610 where child abuse is involved,
Republic Act No. 11313 in contexts related to gender-based harassment, if coupled with physical acts,
and other special laws depending on the facts.

In these cases, the act may still involve bodily injury, but the governing offense may not be prosecuted merely as ordinary physical injuries under the RPC.

4. Katarungang Pambarangay Law

Some physical injuries complaints may first require barangay conciliation before filing in court or before the prosecutor’s office, depending on:

the residence of the parties,
the nature of the offense,
and whether the law provides exceptions.

5. Civil Code

Aside from criminal liability, the act causing physical injuries may also produce:

civil liability ex delicto,
moral damages,
actual damages,
medical reimbursement,
loss of earnings,
and other compensable consequences.

III. What Is a Complaint-Affidavit

A complaint-affidavit is a written, sworn statement executed before a prosecutor, notary public, or other officer authorized to administer oaths, setting out the facts constituting the offense and identifying the respondent or respondents.

For physical injuries cases, it typically contains:

the identity of the complainant,
the identity of the respondent,
the date, time, and place of the incident,
the manner by which the injuries were inflicted,
the injuries sustained,
the surrounding circumstances,
the medical treatment received,
the evidence and witnesses,
and the relief sought, namely the filing of the proper criminal charge.

It serves as the backbone of the prosecution’s initial case.

A complaint-affidavit is evidence in affidavit form, but it is not yet proof of guilt beyond reasonable doubt. Its immediate procedural function is to support a finding of probable cause.

IV. Meaning of “Physical Injuries” Under Philippine Criminal Law

In everyday speech, “physical injuries” means any bodily harm. In criminal law, however, the term has a technical meaning.

Under the Revised Penal Code, physical injuries are classified according to the gravity of the harm and its legal consequences, not merely the visible wounds. The law considers matters such as:

incapacity for labor,
medical attendance required,
deformity,
loss of body part or organ,
loss or impairment of senses,
insanity or mental incapacity caused by the attack,
and the permanence of the injury.

Thus, a bruise, laceration, fractured bone, stab wound, broken tooth, damaged eye, internal injury, or other bodily harm may fall into very different criminal categories depending on legal and medical findings.

V. Principal Classifications of Physical Injuries

A. Serious Physical Injuries

These involve grave harm as defined by the Revised Penal Code. They include situations where the victim:

becomes insane, imbecile, impotent, or blind,
loses the use of speech, hearing, smell, or an eye, hand, foot, arm, or leg,
loses the use of any such member,
becomes incapacitated for work in the manner contemplated by law,
becomes ill or incapacitated for labor for the legally specified period,
or suffers deformity or other serious consequences recognized by the Code.

This is the highest standard among the ordinary physical injuries offenses.

B. Less Serious Physical Injuries

This generally refers to injuries that require medical attendance or cause incapacity for labor for a period recognized by law as more than slight but not rising to the level of serious physical injuries.

C. Slight Physical Injuries

This usually refers to comparatively minor harm, including injuries that incapacitate the offended party for labor or require medical attendance for a shorter legally defined period, or involve ill-treatment not amounting to more serious forms.

D. Maltreatment

There are also situations where a person is ill-treated by deed without causing actual injury or where the injury is too minimal to fall into a more specific category, depending on the facts.

VI. The Label in the Complaint Is Not Controlling

One of the most important rules is that the complainant need not perfectly label the crime. A complaint-affidavit may say “physical injuries,” “serious physical injuries,” or simply narrate the attack. The prosecutor is not bound by the complainant’s chosen caption.

What matters most is the factual narration and the supporting evidence.

For example:

A complainant may call the case “slight physical injuries,” but if the medical certificate shows fracture and extended incapacity, the prosecutor may evaluate it as less serious or serious physical injuries.
A complainant may call it “physical injuries,” but if the facts show deliberate stabbing in a vital area with intent to kill, the prosecutor may consider frustrated homicide or attempted homicide instead.
If the assault happened in a domestic relationship covered by special law, the case may proceed under RA 9262 rather than ordinary physical injuries.

This is why the narrative must be factual, detailed, and accurate rather than overconfidently legalistic.

VII. Who May File the Complaint-Affidavit

Generally, the following may execute or cause the filing of a complaint-affidavit:

1. The offended party

The injured victim is the usual complainant.

2. A parent, guardian, or relative

Where the victim is a minor, incapacitated, hospitalized, or otherwise unable to personally execute the affidavit, a lawful representative may act, subject to procedural rules.

3. A police officer or law enforcement complainant

In some circumstances, especially where the police conducted an arrest or investigation, an officer may execute a complaint-affidavit or supporting affidavit.

4. A witness with personal knowledge

A witness may execute an affidavit to support the main complaint, though the principal complaint is ordinarily filed in the name of the offended party or lawful complainant.

5. In special-law cases

The persons authorized to file may differ depending on the statute.

VIII. Where to File

The proper filing route depends on the offense, its penalty, the circumstances of arrest, and local procedure.

A. Office of the City or Provincial Prosecutor

This is the common route when the case requires preliminary investigation or prosecutorial evaluation. The complainant submits:

complaint-affidavit,
witness affidavits,
documentary attachments,
and supporting evidence.

The prosecutor then dockets the case and requires the respondent to submit a counter-affidavit.

B. Police Station

A complaint may initially be reported to the police for blotter entry, arrest processing if applicable, and investigation. The police may help prepare the affidavits and gather evidence, but the criminal case itself generally moves through prosecutorial channels where required.

C. Inquest Proceedings

If the respondent was lawfully arrested without warrant under circumstances recognized by law, the case may proceed by inquest rather than ordinary preliminary investigation.

D. Municipal Trial Court or Other Proper Court

In some cases, especially where no preliminary investigation is required and the offense is within the court’s jurisdiction for direct filing under applicable rules, the complaint may be filed with the proper court. Still, in practice, many physical injuries cases pass through the prosecutor.

E. Barangay

If barangay conciliation is a condition precedent, the matter may need to pass first through the Lupon Tagapamayapa, unless an exception applies.

IX. Barangay Conciliation: When It Matters

Before filing certain criminal complaints, Philippine law may require prior barangay conciliation if:

the parties are natural persons actually residing in the same city or municipality,
the offense is covered by the Katarungang Pambarangay system,
and no exception applies.

This issue is highly important because failure to comply may result in dismissal for prematurity or failure to satisfy a condition precedent.

Common points to check

Do the parties reside in the same city or municipality?
Are they residents of the same barangay, adjoining barangays, or within coverage of the law?
Is the offense punishable in a manner that still falls within barangay conciliation rules?
Did the incident involve urgency, detention, or circumstances exempting referral?
Is there a need for immediate judicial action?

Situations where barangay conciliation may not be required

As a rule of practice, conciliation may not be required where:

the accused was arrested and the case proceeds by inquest,
urgent legal action is necessary,
the parties do not meet the residence requirements,
one party is the government or a public officer acting in official capacity,
or the offense falls within recognized exceptions.

The issue must always be checked early because it affects filing strategy.

X. Elements of a Good Complaint-Affidavit for Physical Injuries

A strong complaint-affidavit is not just emotional. It must be legally useful.

1. Personal knowledge

The affidavit must clearly show that the complainant personally witnessed or experienced the facts being narrated.

2. Complete identity details

State the names, addresses, and known identifying circumstances of the complainant and respondent.

3. Exact date, time, and place

The affidavit should specify when and where the incident happened.

4. Detailed narration of the assault

The affidavit must describe:

how the altercation began,
who struck first,
what instrument was used,
what body part was hit,
how many times the victim was hit,
and what happened immediately afterward.

5. Injuries sustained

The affidavit should describe the pain, wounds, bleeding, swelling, fractures, hospitalization, and medical findings.

6. Medical treatment

State where the complainant was treated, by whom, on what date, and for how long.

7. Presence of witnesses

Identify all persons who saw the attack or its aftermath.

8. Documentary support

Mention attached:

medical certificate,
hospital records,
photographs,
x-ray results,
police blotter,
barangay documents,
receipts,
and similar records.

9. Signature and oath

The affidavit must be signed and sworn before a person authorized to administer oaths.

XI. Essential Documentary Attachments

In physical injuries cases, documents often determine the strength of the complaint.

A. Medical Certificate

This is one of the most important attachments. It may come from:

a government hospital,
a private physician,
a medico-legal officer,
or a forensic unit.

The certificate may indicate:

nature of wounds,
location of injuries,
estimated healing period,
medical attendance required,
possible weapon or cause,
and degree of incapacity.

Why it matters

The classification of the offense often depends heavily on medical findings. Without a competent medical certificate, the complaint becomes much weaker.

B. Medico-Legal Report

Where available, a medico-legal report is especially persuasive because it tends to be more detailed and forensic in character.

C. Hospital Records

These may include:

emergency room notes,
admission records,
discharge summaries,
operative reports,
prescriptions,
laboratory results.

D. Photographs

Photographs of bruises, cuts, swelling, blood, casts, stitches, broken teeth, or injured body parts may corroborate the affidavit.

E. Receipts and Billing Statements

These support civil liability such as:

medical expenses,
hospitalization,
medicines,
transportation directly related to treatment.

F. Police Blotter

A police blotter entry does not prove the incident by itself, but it can support timing, reporting behavior, and consistency.

G. Barangay Documents

These may include:

certification to file action,
settlement records,
non-settlement certification,
complaint entries.

H. CCTV or Digital Evidence

If available, attach or identify:

CCTV footage,
mobile phone videos,
chat messages showing threats,
recordings,
screenshots.

Authentication issues may arise later, but these materials can still support probable cause at the complaint stage.

XII. Medical Evidence and the Gravity of the Offense

In physical injuries complaints, medical evidence is often decisive because the law classifies injuries according to seriousness.

The following matters are commonly material:

number and location of wounds,
whether the wounds were superficial or deep,
whether bones were fractured,
whether an organ or sensory function was impaired,
whether surgical intervention was required,
period of medical attendance,
period of incapacity for labor,
permanence of injury,
deformity,
danger to life.

Incapacity and medical attendance

The legal classification often turns on the medically certified period of:

incapacity for labor, and/or
medical attendance required.

That means the treating physician’s findings should be clear, not vague.

A certificate that merely says “with hematoma” is often not enough by itself. It is better when the record states:

diagnosis,
treatment,
recovery period,
and incapacity estimate.

XIII. When the Case May Actually Be Attempted or Frustrated Homicide

Not every injury case should be prosecuted as physical injuries.

If the facts show:

intent to kill,
use of a deadly weapon,
repeated attack on vital parts,
treachery or other circumstances,
and injuries that would have caused death without timely medical treatment,

the proper charge may be attempted homicide, frustrated homicide, or another graver offense.

This matters because some complainants mistakenly understate the case as mere physical injuries. On the other hand, some overstate it as attempted murder without evidentiary basis.

The prosecutor evaluates:

nature of attack,
weapon used,
location of wounds,
statements before and during the assault,
conduct of the assailant,
and medical findings.

The complaint-affidavit should therefore narrate facts showing the manner of attack, not just the resulting pain.

XIV. Physical Injuries in Special Contexts

A. Violence Against Women and Their Children

If the offender is a husband, former husband, partner, former partner, person with whom the woman has or had a dating or sexual relationship, or the father of the child, and the injuries arise in that setting, the proper offense may fall under RA 9262.

In that case:

the complaint-affidavit should allege the qualifying relationship,
the acts of violence,
prior abuse if relevant,
and the injuries and threats involved.

The case is then not treated as an ordinary bar-fight physical injuries case.

B. Child Abuse

Where the victim is a child and the violence falls within child abuse statutes, the offense may be prosecuted under special laws rather than only under the RPC.

C. Public Officers

If the assailant is a public officer and the injury was inflicted in connection with official functions, there may be additional legal dimensions such as abuse of authority or administrative liability.

D. School or Workplace Incidents

A school altercation or workplace assault may still amount to criminal physical injuries. Administrative proceedings do not bar criminal prosecution.

XV. Drafting the Complaint-Affidavit

A complaint-affidavit should be written in a clear, chronological, fact-based style.

Recommended structure

1. Caption

The case caption usually indicates:

Republic of the Philippines,
office where filed,
name of complainant,
name of respondent,
and title such as “Complaint-Affidavit.”

2. Introductory identification

The affiant states:

full name,
age,
civil status,
citizenship,
address,
and that he or she is executing the affidavit.

3. Jurat basis

The affiant states that the affidavit is made to charge the respondent for physical injuries or for the offense shown by the facts.

4. Facts

This is the core section. It should narrate:

prior events,
confrontation,
assault,
injuries,
reporting,
treatment,
and identification of the assailant.

5. Evidence

State that attached are:

medical certificate,
witness affidavits,
photographs,
receipts,
police blotter,
and other annexes.

6. Prayer

Ask that the respondent be held liable for the proper offense after preliminary investigation or appropriate proceedings.

7. Signature and jurat

The affidavit is signed and sworn before the proper officer.

XVI. Style and Substance: What to Avoid

A complaint-affidavit should avoid the following weaknesses:

1. Pure conclusions

Do not merely say: “He committed serious physical injuries against me.” State facts.

2. Exaggeration

Avoid unsupported claims like “I almost died” unless backed by medical evidence.

3. Vagueness

Do not omit:

exact acts,
weapon used,
body parts hit,
witnesses present.

4. Hearsay

Do not narrate as fact matters that the affiant only heard from others unless clearly identified as such.

5. Contradictions

Ensure consistency with medical records, blotter entries, and witness affidavits.

6. Missing annexes

A good affidavit without attachments may still be weak.

7. Overreliance on emotions

Pain, fear, and humiliation matter, but the affidavit must remain evidentiary.

XVII. Witness Affidavits

Supporting witness affidavits are often critical. They should come from:

eyewitnesses,
persons who saw the immediate aftermath,
persons who brought the victim to the hospital,
treating medical personnel where appropriate,
or investigating officers for chain-of-events support.

Each witness affidavit should independently state:

how the witness knew the parties,
where the witness was,
what exactly the witness saw,
and what happened after the incident.

Multiple affidavits should be mutually consistent but not suspiciously identical in language.

XVIII. Oath and Verification

A complaint-affidavit must be sworn.

This means the affiant personally appears before:

a prosecutor,
notary public,
or authorized administering officer,

and affirms that:

the statements are true,
based on personal knowledge or authentic records.

False statements in an affidavit may expose the affiant to criminal liability such as perjury or other consequences.

This is why the affidavit must be carefully reviewed before signing.

XIX. Preliminary Investigation

If the offense is one that requires preliminary investigation under the Rules of Criminal Procedure, the complaint-affidavit initiates that process.

Basic flow

Complaint-affidavit and annexes are filed.
Prosecutor issues subpoena to respondent.
Respondent files counter-affidavit and supporting evidence.
Complainant may file reply in some cases if allowed.
Clarificatory hearing may or may not be conducted.
Prosecutor resolves whether probable cause exists.
If probable cause is found, an information is filed in court.

At this stage, the prosecutor does not determine guilt beyond reasonable doubt. The question is only whether there is sufficient ground to engender a well-founded belief that a crime was committed and the respondent is probably guilty thereof.

XX. Counter-Affidavit and Common Defenses

Once the complaint-affidavit is filed, the respondent may raise defenses such as:

denial,
alibi,
self-defense,
defense of relative,
defense of stranger,
accident,
lack of intent,
mistaken identity,
inconsistency of injuries with the alleged manner of attack,
retaliatory or fabricated complaint,
lack of personal knowledge by complainant,
failure of barangay conciliation,
insufficiency of medical evidence.

A complainant should anticipate these and prepare the complaint-affidavit accordingly.

XXI. Self-Defense Issues

In many physical injuries cases, especially fistfights or neighborhood disputes, the respondent claims self-defense.

When self-defense is raised, the legal evaluation often focuses on:

who was the unlawful aggressor,
whether the means employed were reasonably necessary,
whether there was sufficient provocation on the part of the complainant.

This makes details crucial. The complaint-affidavit should narrate:

who initiated the violence,
whether the complainant was armed,
whether there was warning,
whether the assailant continued attacking after the complainant was already defenseless.

XXII. Delay in Reporting

Delay in reporting does not automatically destroy a case, but it may weaken credibility if unexplained.

The affidavit should explain any delay, such as:

emergency treatment,
fear of reprisal,
hospitalization,
attempts at amicable settlement,
inability to move,
late identification of assailant.

Consistency between the date of incident and the date of medical examination is often important.

XXIII. Role of the Police Blotter

A police blotter entry is useful but limited.

It may show:

that a report was made,
when it was made,
the immediate account of the complainant,
and the initial identification of the suspect.

But it is not conclusive proof of the truth of the allegations. Courts generally treat blotter entries as supportive, not determinative.

Thus, the complaint-affidavit and medical evidence remain primary.

XXIV. Filing Against Unknown Assailants

A complaint-affidavit may initially refer to John Doe or unknown respondents if the attackers are not yet fully identified, provided the facts are sufficiently described.

The affidavit should include:

physical descriptions,
aliases,
identifying circumstances,
relationship to known persons,
and how identification may later be established.

Once identified, the complaint may be amended or pursued against the proper persons.

XXV. Multiple Respondents

Where several people participated, the complaint-affidavit should identify:

who struck the complainant,
who held the complainant,
who used a weapon,
who encouraged the attack,
who blocked escape,
and whether they acted in concert.

Collective accusations without role differentiation are weaker unless conspiracy is clearly supported by facts.

XXVI. Civil Liability in the Complaint

A criminal complaint for physical injuries also carries civil implications.

The complainant may recover, upon proper proof:

actual medical expenses,
hospitalization expenses,
medicine costs,
transportation reasonably related to treatment,
lost income where provable,
moral damages in proper cases,
and other damages recognized by law.

Although detailed civil computation is often developed later, the complaint-affidavit should already mention the expenses and consequences suffered.

XXVII. Prescriptive Considerations

Physical injuries offenses are subject to prescription rules depending on the offense charged. Delay can therefore be dangerous.

The complainant should act promptly because:

medical evidence is freshest early,
bruises heal,
witnesses disappear,
CCTV may be overwritten,
and prescriptive periods continue to run.

Prompt filing is both a procedural and evidentiary advantage.

XXVIII. Settlement and Affidavit of Desistance

In practice, some physical injuries cases are settled and accompanied by an affidavit of desistance.

Important rule: an affidavit of desistance does not automatically dismiss a criminal case once jurisdiction has attached or where the prosecutor or court finds sufficient basis to proceed. Criminal offenses are offenses against the State, not merely against the private complainant.

Still, desistance may affect:

prosecutorial evaluation,
availability of witnesses,
and practical viability of the case.

XXIX. Common Mistakes by Complainants

These are frequent errors in Philippine physical injuries complaints:

1. Filing without medical evidence

This is one of the most damaging omissions.

2. Using only the police blotter

A blotter alone is usually insufficient.

3. Failing to describe the injuries by body part and effect

Details matter.

4. Misidentifying the offense based only on emotion

The facts should drive the charge.

5. Ignoring barangay conciliation when required

This may derail the case.

6. Not preserving photos or CCTV

Physical evidence may vanish quickly.

7. Delayed examination

A late medical exam may make causation harder to establish.

8. Affidavit prepared with copied boilerplate language

Generic affidavits look weak and may omit key facts.

XXX. Practical Sequence for the Injured Party

A legally sound approach often follows this order:

Secure immediate medical treatment.
Obtain a medical certificate or medico-legal report.
Document the injuries through photographs.
Report the incident to the police if appropriate.
Identify and secure witnesses.
Determine whether barangay conciliation is required.
Prepare the complaint-affidavit and witness affidavits.
Attach all supporting documents.
File with the proper office.
Monitor subpoenas, settings, and prosecutorial directives.

This sequence preserves evidence and reduces procedural vulnerability.

XXXI. Sample Factual Matters That Should Appear in the Affidavit

A complaint-affidavit for physical injuries should usually answer the following:

Who attacked me?
How do I know the attacker?
Where exactly did it happen?
What time did it happen?
What triggered the incident?
Who struck first?
What words were uttered?
Was a weapon used?
What body parts were hit?
How many blows were delivered?
Was I already down when the attack continued?
Who witnessed it?
Where did I go for treatment?
What did the doctor find?
How long was I unable to work or function normally?
What documents support my complaint?

If these questions are unanswered, the affidavit is likely incomplete.

XXXII. Distinction Between Criminal and Administrative or Civil Remedies

A physical attack may lead to multiple proceedings:

criminal case for physical injuries or related offense,
civil action for damages,
administrative complaint if the offender is a public employee, teacher, professional, or licensed worker,
labor complaint in employment-related settings where applicable.

These remedies can coexist subject to procedural rules. A complaint-affidavit in the criminal case focuses on the criminal act and probable cause, but the same facts may support other remedies.

XXXIII. Evidentiary Weight at Different Stages

The complaint-affidavit has different practical value at different stages:

At filing stage

It initiates the case.

At preliminary investigation

It is a major basis for probable cause.

At trial

It does not automatically replace oral testimony. The affiant may still need to testify and identify the affidavit, medical records, and annexes, subject to the Rules on Evidence and cross-examination.

Thus, the complaint-affidavit should be drafted with future trial use in mind.

XXXIV. Language and Translation Issues

In the Philippines, affidavits are often executed in English or Filipino. If the affiant is more comfortable in another language or dialect, care must be taken to ensure:

the contents were explained to the affiant,
the affiant understood the affidavit,
and the oath was meaningful.

A poorly translated affidavit can create credibility problems.

XXXV. Strategic Importance of Precision

Precision is everything in a physical injuries complaint-affidavit.

A prosecutor assessing probable cause will look for:

internal consistency,
medically supported injury,
plausibility,
legal sufficiency,
and proper procedure.

A strong complaint-affidavit does not merely accuse. It reconstructs the criminal event in a way that is:

factually coherent,
medically corroborated,
procedurally proper,
and legally classifiable.

XXXVI. Conclusion

A complaint-affidavit for physical injuries in the Philippines is the principal sworn document used to initiate criminal action for bodily harm under the Revised Penal Code or, where applicable, under special laws. Its effectiveness depends not on rhetoric but on clear facts, competent medical proof, proper attachments, and correct procedural filing.

The complainant must pay close attention to the legal classification of the injury, the possibility that the real offense is graver than ordinary physical injuries, the need for barangay conciliation where required, and the strength of medical and eyewitness evidence. The complaint-affidavit should narrate the incident with precision, identify the respondent and witnesses, describe the injuries in legally useful detail, and attach the documentary support necessary for a finding of probable cause.

In Philippine practice, many physical injuries cases succeed or fail at the very beginning based on the quality of the complaint-affidavit. It is not a mere formality. It is the foundational document that transforms an allegation of bodily harm into a prosecutable criminal case.