TN Private Investigator study materials
TN Private Investigator study resources

TN Private Investigator key terms

TN Private Investigator · Get comfortable with the vocabulary.

Tennessee Private Investigation and Polygraph Commission

The Tennessee board, housed in the Department of Commerce and Insurance, that issues licenses to private investigators and polygraph examiners, adopts rules, investigates complaints, and imposes discipline.

Related: Private Investigators Licensing and Regulatory Act, Unlicensed practice, Administrative complaint
Private Investigators Licensing and Regulatory Act

Tennessee's statute chapter, Tenn. Code Ann. Title 62, Chapter 26, that creates the licensing scheme for private investigators, defines prohibited conduct, and grants the Commission its enforcement authority.

Related: Tennessee Private Investigation and Polygraph Commission, Private investigator license
Private investigator license

A credential the Commission issues to an individual who has met the statutory qualifications, allowing that person to conduct investigations for hire in Tennessee.

Related: Private investigation company license, Unlicensed practice
Private investigation company license

A license the Commission issues to a business entity that offers investigative services, requiring the company to be affiliated with a licensed investigator and to comply with Commission rules.

Related: Private investigator license, Tennessee Private Investigation and Polygraph Commission
Polygraph examiner license

A separate Commission credential required of a person who administers polygraph examinations in Tennessee; polygraph work is regulated alongside private investigation.

Related: Tennessee Private Investigation and Polygraph Commission
Unlicensed practice

Performing investigative services for hire without the required individual or company license; it exposes the person to Commission action, civil penalties, and criminal prosecution.

Related: Private investigator license, Statutory exemption
Statutory exemption

A provision of the licensing act that excuses a defined class of persons or activities from the license requirement; an investigator should confirm a claimed exemption before working unlicensed.

Related: Unlicensed practice
Continuing education

Ongoing training that licensees must complete and document in order to renew; the required hours and approved subject areas are set by statute and Commission rule.

Related: Private investigator license
Administrative complaint

A formal allegation filed with the Commission that a licensee violated the licensing act or rules; it can lead to an investigation, a hearing, and sanctions such as reprimand, suspension, or revocation.

Related: Unlicensed practice, Tennessee Private Investigation and Polygraph Commission
Client intake

The first meeting with a client to learn the facts, identify the client's goal, check for conflicts, and decide whether the matter can lawfully be handled.

Related: Engagement agreement, Conflict of interest, Scope of investigation
Engagement agreement

A written contract stating the parties, the services to be performed, fees and expenses, the expected time frame, and the limits on what the investigator will do.

Related: Client intake, Scope of investigation
Scope of investigation

The defined questions, subjects, time period, and limits of a case; it keeps the work lawful, focused, and within the client's instructions and budget.

Related: Engagement agreement, Investigative plan
Investigative plan

A written outline of objectives, facts known and unknown, sources to contact, methods to use, legal limits, and time and cost estimates for a case.

Related: Scope of investigation, Case file
Skip trace

An effort to locate a person's current address, phone, employer, or assets using records, databases, and field inquiries, typically to serve process or collect a debt.

Related: Public records request, Open-source intelligence
Open-source intelligence

Information gathered from publicly available sources such as court records, news, registries, and social media, collected without deception and documented as to source and date.

Related: Public records request, Skip trace
Public records request

A written request to a government agency for records that are open under Tennessee's public records law; the agency may charge for copies and may withhold records the law exempts.

Related: Open-source intelligence
Pretexting

Using a cover story or assumed role to obtain information from a person; it must never involve impersonating law enforcement or obtaining protected records by fraud.

Related: Impersonating a law enforcement officer, Limits of authority
Case file

The organized record of a case, including the agreement, notes, evidence records, reports, and correspondence, kept secure, indexed, and retained as long as the client, contract, or law requires.

Related: Contemporaneous notes, Chain of custody
Evidence

Any object, document, statement, or digital record that tends to prove or disprove a fact in dispute in an investigation or legal proceeding.

Related: Physical evidence, Digital evidence, Chain of custody
Chain of custody

The documented, unbroken record of who collected, handled, transferred, and stored an item of evidence, from seizure to final disposition, used to show it was not altered.

Related: Evidence log, Contamination
Evidence log

A running written record listing each item collected, when and where it was found, who collected it, and every transfer of custody with signatures and dates.

Related: Chain of custody
Physical evidence

Tangible items such as tools, clothing, weapons, or samples; they must be photographed in place, packaged separately, labeled, and stored to prevent loss or change.

Related: Evidence, Contamination
Digital evidence

Data from phones, computers, cameras, or online accounts; proper handling includes documentation, working copies, hash values, and proof that originals were not altered.

Related: Evidence, Preservation letter
Contamination

Any action that adds to, removes, or changes an item or scene, or breaks custody, weakening the value of the evidence and the investigator's credibility.

Related: Chain of custody, Evidence log
Preservation letter

Written notice to a person or business asking them to hold records, video, or data that may be relevant, sent early to prevent routine deletion or destruction.

Related: Digital evidence, Evidence
Surveillance

Systematic observation of a person or place to document activity, associations, or conditions, conducted from a lawful vantage point without harassment or trespass.

Related: Mobile surveillance, Static surveillance, Surveillance log
Mobile surveillance

Following a subject on foot or in a vehicle; it requires keeping distance, changing position or appearance, and driving safely to avoid detection and complaints.

Related: Surveillance, Surveillance log
Static surveillance

Observation from a fixed position such as a vehicle, building, or public area, usually chosen for a clear view and a plausible reason to be present.

Related: Surveillance
Surveillance log

A time-stamped record of what the investigator observed, the location, weather, lighting, and any breaks, written so another person could reconstruct the watch.

Related: Surveillance, Contemporaneous notes
Witness interview

A planned conversation to gather a witness's account, using open questions first and then specifics, with the witness's own words recorded and clarified without suggestion.

Related: Contemporaneous notes, Hearsay
Contemporaneous notes

Notes made during or immediately after an activity, capturing times, places, people, and exact quotes; they support later reports and may be discoverable.

Related: Investigative report, Surveillance log
Investigative report

A factual, chronological written account of the investigation stating sources, observations, and findings, separating what was seen from what was concluded or reported by others.

Related: Contemporaneous notes, Hearsay
Hearsay

A statement made outside the courtroom that is offered to prove its content; investigators record such statements as reported information and try to confirm them through direct evidence.

Related: Witness interview, Investigative report
Confidentiality

The duty not to disclose client information or case details except as the client authorizes or the law requires, including when a report is filed in court.

Related: Attorney work product, Conflict of interest
Conflict of interest

A personal, financial, or prior relationship that could bias an investigation or appear to do so; it must be disclosed and usually requires declining the case.

Related: Client intake, Confidentiality
Attorney work product

Materials prepared for a lawyer in anticipation of litigation, which may be shielded from disclosure; investigators engaged by counsel route their reports through that attorney.

Related: Confidentiality
Impersonating a law enforcement officer

Falsely presenting oneself as a police officer or other official; it is a crime and a licensing violation, and investigators must state their role honestly when required.

Related: Pretexting, Limits of authority
One-party consent recording

Tennessee's rule allowing a person who is part of a conversation to record it without the other side's permission; recording a conversation you are not part of is generally prohibited.

Related: Surveillance, Limits of authority
Limits of authority

A licensed investigator has no police powers: no arrests, no searches, no compelled statements, and no access to protected records; authority comes from the client and the law.

Related: Impersonating a law enforcement officer, Pretexting