Once a witness starts talking freely, what should the interviewer do?
BC Private Investigator: Interviews, statements and reports
Preparing and conducting interviews, recording only with a party's consent, the parts of a written witness statement, corrections and initials, voluntariness, objective reports, correcting notes, and using notes in court.
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- Every answer explained
- Independent · not a government site
- 14 questions
- Topic drill
Study reference: B.C. private investigator law and public guidance (Oct 2026), Ch. 9 Interviews, statements and reports — Ontario PI Study Guide Section 5: interview techniques, statements, report writing, reports as evidence; gov.bc.ca Making a statement
All 14 questions in this test
Every question and its answer choices. The correct answers and explanations appear when you take the test above.
Once a witness starts talking freely, what should the interviewer do?
- Argue with any point they doubt
- Stop them to read the client's version
- Not interrupt, and take notes discreetly
- Correct every small error right away
May a PI leave a hidden recorder in a room to capture a conversation between two other people?
- Yes, if the client owns the building where the room is located
- Yes, if the room is in a workplace
- Yes, if the PI owns the recorder
- No, that intercepts a private communication
A witness asks to change a line before signing. How should the change be made?
- Have the PI change it quietly after the witness has left the room
- Use correction fluid and rewrite it neatly
- Strike through it, with both people initialling
- Start the whole statement again from scratch
How should a PI begin an interview with a witness?
- Say they are with the police to save time
- Start recording right away without saying who they are or why
- Greet them, identify themselves and show the licence
- Ask for the witness's ID before speaking
Why does the PI draw an X through the blank space at the end of a statement?
- To show the page was photocopied
- To mark the statement as rejected
- To show nothing was added after signing
- To show that the witness refused to sign the statement at all
How may a PI use notes on the witness stand?
- Give the notes to the jury instead
- Read the notes aloud word for word as the evidence
- With permission, as a memory aid only
- Not at all, under any circumstances
What is the key to a successful interview?
- Knowing the purpose of the interview
- Interviewing only people who agree with the client
- Arriving without any prepared questions
- Keeping the interview as short as possible
What should appear at the start of each surveillance report?
- A summary of the client's invoice and the PI's hourly rate
- Subject's name, file number, date and time
- The PI's home address and phone
- The subject's credit score
Why should a PI not rely only on a digital recorder for notes?
- Recorders are banned for licensed PIs
- Recorders are never allowed in court
- Recorders always break privacy law
- Batteries can drain and devices can fail
Which detail belongs in a written witness statement?
- The PI's opinion of the witness
- The time the statement started and finished
- The subject's private medical history
- The client's fee for the file
When should a PI write up an interview?
- Only if the client asks
- At the end of the month, with other reports
- Before the trial date
- Right after the interview
A suspect confesses after a PI promises the client will not report them to police. What is the risk?
- A confession induced by a promise may be inadmissible
- None, because PIs are not police officers and the rules do not apply
- None, if the confession is written down
- Only that the client might be upset
What is the key purpose of taking a witness statement?
- To list the witness's personal opinions
- To replace the need for any court testimony
- To keep an accurate record of the witness's recollection
- To persuade the witness to support the client's version of events
A PI finds an error in their surveillance notes. How should it be corrected?
- Use correction tape so it looks clean
- Black it out completely with a marker
- Draw a single line through it and initial it
- Tear out the page and rewrite it
Interviews, statements and reports: key rules to remember
Our summary of what the official handbook says on this topic, in our own words. Read it before or after the practice questions above, then check the original chapter. Read the official chapter ↗
Interview techniques (general practice)
- Know the purpose of the interview; prepare questions, notebook, pens and a recorder.
- Never record a conversation without the knowledge and consent of one of the parties; recording others' conversation without consent is a criminal offence (Criminal Code s. 184).
- Make an appointment with a co-operative witness; a cold call may suit some cases; state your business truthfully without revealing confidential information.
- Identify yourself and show your licence; do not interrupt once the person talks; take notes discreetly; control your emotions; close courteously.
- Write the investigative report immediately after the interview.
Statements
- Purpose: an accurate record of the witness's recollection.
- Include the witness's full name, date of birth, ID, employment and contact information, address, location, date, start and end times, the investigator's name and company, an introduction, a verbatim account and a closing paragraph.
- Let the witness review and change the statement before signing; strike through changes with both sets of initials; initial or sign each page; draw an X through unused space on the last page.
- Record that the information was given of the witness's own free will; a confession must involve no threat or promise, or it will be inadmissible.
Report writing and reports as evidence
- Reports are objective and standardized: date, time, location, actions, descriptions, observations, time of completion.
- Record notes as soon as possible; a recorder helps but can fail; add omitted information when remembered; correct errors by a single line and initials.
- Final reports come from personal notes and a review of the video; surveillance reports start with the subject's name, file number, date and time.
- In court, with permission, notes may be used as a memory aid only; review them before testifying.
Making a statement (March 12, 2026)
- Police ask witnesses for exact time and location, names, descriptions (hair, build, height, sex, race), what was seen, and vehicle plate, colour and type; read a statement fully and sign only if accurate.
Study the Interviews, statements and reports rules as flashcards →
Other topics
- Who needs a B.C. PI licence and how to get oneThe Security Services Act definition of a private investigator, who is exempt (lawyers, journalists, insurance adjusters, pre-employment screening), the PI and PI-under-supervision licences, the PSKN Introduction to Private Investigation course and exam, the 2,000-hour and police-experience routes, and out-of-province investigators.
- Licence rules, conduct and PI businessesCarrying and showing your licence, 14-day reporting, no uniform and no badge, the banned words detective and police, the B.C. code of conduct, business licences, insurance and records, enforcement and penalties, and why bug sweeping needs a security consultant licence.
- Courts, burden of proof and testifyingThe levels of Canadian and B.C. courts, the Civil Resolution Tribunal and Small Claims Court limits, criminal and civil burdens of proof, subpoenas, oaths, direct and cross-examination, and what counts as a crime for licensing.
- Arrest, force and criminal harassmentWhy a PI has only a citizen's powers, arrest without warrant under section 494, delivery to police, use of force under sections 25 to 27, 34 and 35, Charter rights, and how surveillance can cross into criminal harassment under section 264.
- B.C. PIPA: consent, investigations and public sourcesHow B.C.'s Personal Information Protection Act applies to PI firms: consent and deceptive practices, the investigation exception, prescribed publicly available sources, access requests, safeguards and retention, and restricted records.
- Privacy Act, recording and surveillance limitsB.C.'s statutory tort of violation of privacy, its exceptions, eavesdropping and surveillance, use of a name or portrait, one-party consent to record under Criminal Code section 184, filming from public places, GPS trackers and criminal harassment.
- Human rights, the Charter and young personsB.C. Human Rights Code grounds in services and employment, the code of conduct's equality duty, the Charter, the Youth Criminal Justice Act's age definitions and declaration of principle, the publication ban, and interviewing people under 18.
- Mandate, surveillance and undercover workSetting a justifiable mandate, preparing for surveillance, standard equipment, obeying traffic law, detecting counter-surveillance, solo and team methods, subjects with lawyers, and the rules of undercover operations.
- Evidence handling and information sourcesThe six steps for containing evidence, chain of custody, protecting original video, business and electronic records under the Canada Evidence Act, and lawful research sources such as directories, registries, PPSR and court files.
- Technology, countermeasures and safetyTechnical surveillance countermeasures and the security consultant licence, interception and computer-system rules, wireless cameras and GPS, authenticating electronic files, insurance, and WorkSafeBC rules for lone and at-risk work.