PNP-SOSIA Private Detective key terms
PNP-SOSIA Private Detective · Get comfortable with the vocabulary.
- RA 11917
- Related: RA 5487, License to Operate, PNP-SOSIA
Republic Act No. 11917 is the Philippine law that regulates the private security services industry, including private detective services. It replaced RA 5487 and set newer rules on licensing, training, and practice of the security profession.
- RA 5487
- Related: RA 11917, PNP-SOSIA
Republic Act No. 5487 is the older Private Security Agency Law that governed security and detective agencies for decades. Its rules on licensing and agency operations were largely carried over or superseded by RA 11917.
- PNP-SOSIA
- Related: License to Operate, Private Security Agency, RA 11917
The Supervisory Office for Security and Investigation Agencies is the Philippine National Police unit that licenses, monitors, and disciplines private security and detective agencies and their personnel.
- License to Operate
- Related: PNP-SOSIA, Private Security Agency, RA 11917
A license issued by the PNP-SOSIA that authorizes a person or entity to run a private security or detective agency. Operating without one is illegal and exposes the owner to criminal and administrative liability.
- Private Detective
- Related: License to Operate, Confidentiality, Case Build-Up
A licensed professional who, for hire, investigates and gathers information about persons or events such as missing persons, fraud, and infidelity. Detectives must be licensed and must obey privacy and evidence laws.
- Private Security Agency
- Related: License to Operate, PNP-SOSIA, Post Orders
A business licensed to provide security guards, detectives, or protective services to clients for a fee. Its license, personnel, firearms, and operations are regulated by the PNP-SOSIA.
- Felony
- Related: Dolo, Culpa, Conspiracy
A felony is an act or omission punished by the Revised Penal Code. It may be committed with intent or with negligence, and it requires a voluntary act plus a resulting injury or danger.
- Dolo
- Related: Felony, Culpa, Praeter Intentionem
Dolo, or criminal intent, means the offender deliberately intends the unlawful act and its consequences. It requires freedom, intelligence, and intent, and it produces an intentional felony.
- Culpa
- Related: Felony, Dolo, Praeter Intentionem
Culpa refers to criminal negligence, where the offender fails to exercise the diligence required and causes harm unintentionally. The resulting felony is culpable rather than intentional.
- Praeter Intentionem
- Related: Dolo, Felony
A circumstance where the offender's act goes beyond what he intended, causing a graver consequence than planned. It can mitigate liability because the greater injury was not intended.
- Conspiracy
- Related: Felony, Complex Crime
Conspiracy exists when two or more persons agree to commit a felony and decide to carry it out. It may be proven by direct or circumstantial evidence of a common design.
- Self-Defense
- Related: Felony, Dolo
A justifying circumstance where a person uses necessary and reasonable force to repel unlawful aggression against himself or his rights, provided there is no sufficient provocation from the defender.
- Complex Crime
- Related: Felony, Conspiracy
A complex crime arises when a single act constitutes two or more grave or less grave felonies, or when an offense is a necessary means for committing another.
- Probable Cause
- Related: Search Warrant, Warrantless Arrest
Probable cause is a reasonable ground of suspicion, supported by facts and circumstances, that a person has committed a crime or that evidence will be found in a particular place.
- Warrantless Arrest
- Related: Probable Cause, Search Warrant, Interrogation
An arrest made without a warrant in legally allowed situations, such as catching a person in the act, hot pursuit, or when the person is an escaped prisoner.
- Search Warrant
- Related: Probable Cause, Chain of Custody
A written court order directing officers to search a specific place and seize described property. It must be based on probable cause personally determined by a judge.
- Chain of Custody
- Related: Search Warrant, SOCO, Case Build-Up
The documented, unbroken sequence of who handled evidence and when, from seizure to court presentation. Gaps can weaken or destroy the evidence's admissibility and weight.
- Hearsay
- Related: Dying Declaration, Interrogation
Testimony or a document that repeats what someone else said outside court, offered to prove the truth of that statement. It is generally inadmissible because the declarant cannot be cross-examined.
- Dying Declaration
- Related: Hearsay
A statement made by a person who believes death is imminent, about the cause and circumstances of that death. It is an exception to the hearsay rule and is admissible in court.
- Case Build-Up
- Related: Chain of Custody, SOCO, Probable Cause
The process of gathering and organizing evidence, witness statements, and records to establish a case against a suspect before filing charges.
- SOCO
- Related: Chain of Custody, Forensic Ballistics, Case Build-Up
Scene of the Crime Operatives are police forensic teams that process a crime scene, photograph it, collect evidence, and document findings for investigation and court use.
- Interrogation
- Related: Warrantless Arrest, Entrapment, Polygraph
Questioning of a suspect by investigators to obtain admissions or information. It is subject to strict rules on rights, counsel, and voluntariness, and coerced statements are inadmissible.
- Entrapment
- Related: Surveillance, Interrogation
A tactic where officers induce a person to commit a crime he was already disposed to commit; it does not bar prosecution. If the person was not predisposed, it becomes inducement and may bar prosecution.
- Surveillance
- Related: Entrapment, Modus Operandi
The covert observation of persons, places, or activities to gather information or evidence. It must respect privacy laws and cannot include wiretapping without legal authority.
- Modus Operandi
- Related: Case Build-Up, Surveillance
The typical pattern or method a criminal uses in committing offenses. Investigators compare methods to link cases and identify possible suspects.
- Forensic Ballistics
- Related: Chain of Custody, SOCO, Locard's Exchange Principle
The study of firearms, ammunition, and related tool marks. It matches bullets and shell casings to a weapon and helps reconstruct shooting incidents.
- Dactyloscopy
- Related: Chain of Custody, Questioned Documents
The forensic study of fingerprints, including their patterns and comparison. Fingerprints are unique and durable, making them valuable for identification.
- Questioned Documents
- Related: Dactyloscopy, Chain of Custody
Documents whose authenticity or meaning is disputed. Examiners compare handwriting, signatures, inks, and paper to detect forgery, alteration, or substitution.
- Locard's Exchange Principle
- Related: Chain of Custody, Forensic Ballistics
The principle that every contact leaves a trace. When a person touches an object or another person, material is transferred in at least one direction.
- Polygraph
- Related: Interrogation
An instrument that records physical responses such as breathing, pulse, and skin conductance while a person answers questions. Results are investigative aids, not conclusive proof of truth.
- Span of Control
- Related: Post Orders, Security Survey
The number of subordinates directly reporting to one supervisor. A narrow span suits complex work, while a wide span suits routine, standardized tasks.
- Security Survey
- Related: Risk Assessment, Post Orders
A systematic inspection of a facility to identify vulnerabilities, evaluate existing safeguards, and recommend improvements to prevent loss or attack.
- Post Orders
- Related: Security Survey, Span of Control
Written instructions for guards at a specific post describing duties, patrols, access rules, and emergency procedures. They standardize performance and support accountability.
- Risk Assessment
- Related: Security Survey, Post Orders
The process of identifying threats, vulnerabilities, and potential loss, then estimating likelihood and impact to prioritize security measures and spending.
- Confidentiality
- Related: Conflict of Interest, Professional Ethics
The ethical duty not to disclose client or case information learned through professional work, except when required by law or necessary to prevent serious harm.
- Conflict of Interest
- Related: Confidentiality, Professional Ethics
A situation where a detective's personal, financial, or other interest could improperly influence professional judgment, such as investigating a relative or a competitor's case.
- Professional Ethics
- Related: Confidentiality, Conflict of Interest
The moral standards governing a detective's conduct, including honesty, fairness, confidentiality, and respect for the law and the client's legitimate interests.
- Spot Report
- Related: Narrative Report, 5W1H
A brief written report sent immediately after an incident, covering the basic facts of who, what, when, where, why, and how for quick command awareness.
- Narrative Report
- Related: Spot Report, 5W1H
A report written in continuous prose that describes events in chronological order, including background, actions taken, findings, and recommendations.
- 5W1H
- Related: Spot Report, Narrative Report
A reporting framework covering who, what, when, where, why, and how. It ensures basic facts are complete and easy to verify in any report.