PNP-SOSIA Private Detective study materials
PNP-SOSIA Private Detective study resources

PNP-SOSIA Private Detective study plan

PNP-SOSIA Private Detective · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Laws on Private Security and Detective Agencies (RA 11917, RA 5487, and implementing rules)

  • Differentiate the licensing and registration categories for private security and detective agencies under RA 11917 and RA 5487, including which activities require a detective license versus a security agency license.

  • Map the documentary, capitalization, training, and bonding requirements for new licenses and renewals into a single comparison table with the specific implementing-rule provisions.

  • Identify at least ten prohibited acts and the corresponding administrative and criminal penalties, explaining who bears liability (agency, licensee, or individual guard/detective).

  • Outline the scope of a private detective's authority, including limits on arrest, search, detention, and use of force, and distinguish these from police powers.

Your checkpoint

A one-page licensing comparison matrix covering RA 11917 and RA 5487 plus a 30-item self-made quiz scored at 80% or higher.

Week 2

Laws on Private Security and Detective Agencies (RA 11917, RA 5487, and implementing rules) & Criminal Investigation and Case Build-Up

  • Apply the licensing rules to three hypothetical agency scenarios and determine whether each operation is lawful, conditional, or prohibited, citing the controlling provision.

  • Draft a compliance checklist an agency owner could use before accepting a surveillance or background-investigation engagement.

  • Sequence the phases of a criminal case build-up from initial report through case filing, naming the evidence and documentation required at each phase.

  • Construct an evidence-log template that records source, custody, and relevance for every item collected during an investigation.

Your checkpoint

Two scenario analyses with statutory citations and a completed evidence-log template for a simulated investigation.

Week 3

Criminal Investigation and Case Build-Up

  • Build a full case build-up for a simulated robbery, a estafa/fraud complaint, and a homicide, listing the elements to prove and the evidence needed for each element.

  • Draft witness statements and a suspect interview plan that avoid leading questions and preserve voluntariness.

  • Prepare a chain-of-custody procedure and an arrest/search operational plan with assigned roles, timing, and contingency steps.

  • Evaluate three weak case files and identify the specific evidentiary gaps that would cause prosecutors to reject or downgrade the charge.

Your checkpoint

A complete case build-up packet for one simulated robbery-homicide, including element matrix, witness statements, custody log, and operational plan.

Week 4

Criminal Procedure and Rules of Evidence & Criminal Investigation and Case Build-Up

  • Analyze warrantless arrest and search situations against the constitutional requirements and determine the admissibility of the resulting evidence.

  • Draft a search-warrant affidavit that establishes probable cause with particularity as to place, person, and items.

  • Apply the exclusionary rule and the fruit-of-the-poisonous-tree doctrine to five fact patterns and predict whether each item is admissible.

  • Map the rules on electronic evidence, documentary evidence, and object evidence to the investigative steps that preserve them.

Your checkpoint

A 25-item procedural quiz scored at 80% or higher plus a completed search-warrant affidavit reviewed against a self-made checklist.

Week 5

Criminalistics and Forensic Science & Criminal Procedure and Rules of Evidence

  • Classify forensic evidence by type (biological, latent print, ballistic, digital, questioned document) and state the collection and preservation requirement for each.

  • Describe the correct handling sequence for DNA, fingerprint, and firearm evidence from scene to laboratory, including contamination controls.

  • Draft a laboratory request that specifies the question to be answered, the samples submitted, and the chain-of-custody documentation.

  • Evaluate how forensic reports are authenticated and admitted in court, and identify common defense challenges to laboratory results.

Your checkpoint

A forensic evidence handling checklist for three evidence types plus a 20-item quiz scored at 80% or higher.

Week 6

Criminal Law & Security and Investigation Management / Administration

  • Distinguish the elements of major crimes against persons, property, and public interest, and compute penalties for two sample fact patterns.

  • Compare the elements of related offenses (for example, theft versus robbery versus estafa) and select the correct charge for five fact patterns.

  • Design a standard operating procedure for an investigative agency covering intake, case assignment, supervision, and records retention.

  • Outline a staffing and deployment plan that matches investigator workload to case volume and identifies training and equipment needs.

Your checkpoint

An offense-element chart for at least ten crimes plus a two-page agency SOP outline covering intake through records retention.

Week 7

Ethics, Values, and Professional Conduct & Report Writing and Communication

  • Apply the professional code of conduct to six ethical dilemmas involving confidentiality, conflict of interest, evidence handling, and client pressure.

  • Draft an incident report, an investigation report, and an executive summary that state facts chronologically and separate observation from inference.

  • Revise two weak reports for clarity, conciseness, active voice, and proper use of headings, dates, and exhibit references.

  • Prepare and deliver a five-minute oral briefing from a written report, keeping the facts accurate and the conclusions supported.

Your checkpoint

Two complete reports (incident and investigation) plus a one-page ethics memo resolving three of the dilemmas with justifications.

Week 8

Laws on Private Security and Detective Agencies (RA 11917, RA 5487, and implementing rules) & Criminal Law & Criminal Procedure and Rules of Evidence & Criminal Investigation and Case Build-Up & Criminalistics and Forensic Science & Security and Investigation Management / Administration & Ethics, Values, and Professional Conduct & Report Writing and Communication

  • Complete a timed 100-item mock examination spanning all eight domains and score at least 75%.

  • Categorize every missed item by domain and root cause (knowledge gap, misreading, or rule confusion) and rank the top three weak areas.

  • Re-study the three weakest areas and re-answer at least 30 targeted items until reaching 85% accuracy.

  • Summarize each domain in a one-page review sheet that can be used for final rapid recall.

Your checkpoint

A scored 100-item mock examination with an error log and eight one-page domain review sheets.

Milestones

Week 2: Explain, without notes, the licensing pathway for a new detective agency and identify the penalty exposure for three prohibited acts.

Week 4: Produce a case build-up packet and a search-warrant affidavit that pass a self-review checklist with no missing element or custody gap.

Week 6: Score at least 80% on a mixed 40-item quiz covering criminal law, criminal procedure, and investigative management.

Week 8: Score at least 75% on the full mock examination and show a written remediation plan for the three weakest domains.