MT Private Investigator study materials
MT Private Investigator study resources

MT Private Investigator key terms

MT Private Investigator · Get comfortable with the vocabulary.

Private Investigator (PI)

A person licensed by the state to conduct investigations for hire, including obtaining information about crimes, identity, habits, conduct, business activity, or location of persons, without police authority.

Related: Private Security License, Scope of Authority
Private Security License

The credential issued by the Montana Board of Private Security to an individual or company authorizing regulated work as a private investigator, security guard, or related category.

Related: Private Investigator (PI), Board of Private Security
Board of Private Security

The Montana regulatory body that licenses private investigators and security providers, adopts administrative rules, investigates complaints, and imposes discipline for violations.

Related: Private Security License, Administrative Rules
Administrative Rules

Regulations adopted by the Board to implement its statutes, covering licensing procedures, training, identification, recordkeeping, and standards of conduct that licensees must follow.

Related: Board of Private Security, Montana Private Security Statutes
Montana Private Security Statutes

The body of state law enacted by the Legislature that establishes licensing requirements, prohibited conduct, enforcement authority, and penalties for private investigators and security providers.

Related: Administrative Rules, Unlicensed Practice
Unlicensed Practice

Performing private investigator services for compensation without a valid license, which is unlawful and can result in civil penalties, criminal charges, and refusal of future licensure.

Related: Private Security License, Scope of Authority
Identification Card

The board-issued credential a licensed investigator must carry while working, displaying the licensee's name, license number, and status, and produced on request to clients or authorities.

Related: License Number, Recordkeeping Requirements
License Number

The unique identifier assigned by the Board to each licensed investigator or agency, used on identification cards, advertisements, reports, and correspondence with the Board.

Related: Identification Card, License Renewal
License Renewal

The periodic process by which a licensee submits an application, fees, and any required continuing education to keep a license active beyond its expiration date.

Related: Continuing Education, License Number
Continuing Education

Required training hours a licensee must complete during each renewal cycle to maintain licensure and stay current on law, ethics, and investigative practice.

Related: License Renewal, Professional Conduct
Recordkeeping Requirements

Rules obligating licensees to create and retain accurate records of investigations, client engagements, employees, and training, available for inspection by the Board.

Related: Identification Card, Complaint
Qualifying Agent

An individual who meets experience and examination requirements and is designated to supervise an agency's licensed operations and ensure compliance with statutes and rules.

Related: Private Security Agency, Supervision
Private Security Agency

A business entity licensed to provide investigator or security services through licensed employees, responsible for supervising staff and complying with board requirements.

Related: Qualifying Agent, Supervision
Supervision

The duty of a licensed supervisor or qualifying agent to oversee employees' work, ensure lawful conduct, review reports, and correct improper investigative practices.

Related: Qualifying Agent, Scope of Authority
Scope of Authority

The limits on what a licensed investigator may lawfully do, which excludes arrest powers, search warrants, and other functions reserved to sworn law enforcement officers.

Related: Private Investigator (PI), Impersonating an Officer
Impersonating an Officer

Falsely representing oneself as a peace officer or public official, a crime and serious licensure violation even when done to obtain information during an investigation.

Related: Scope of Authority, Misrepresentation
Misrepresentation

Making false or misleading statements about one's identity, credentials, or authority, or about a client's purposes, in the course of obtaining information or soliciting business.

Related: Impersonating an Officer, Professional Conduct
Professional Conduct

The ethical and legal standards licensees must meet, including honesty, confidentiality, lawful methods, respect for privacy, and avoidance of conflicts of interest.

Related: Code of Ethics, Confidentiality
Code of Ethics

The standards of behavior adopted by rule or professional practice that guide investigators in dealing honestly with clients, subjects, courts, and the public.

Related: Professional Conduct, Conflict of Interest
Confidentiality

The duty to protect client information and investigation details from unauthorized disclosure, subject to legal exceptions such as court orders or mandatory reporting.

Related: Professional Conduct, Client Relationship
Conflict of Interest

A situation where an investigator's personal, financial, or prior professional relationships could bias the work, requiring disclosure or withdrawal from the engagement.

Related: Professional Conduct, Client Relationship
Client Relationship

The professional arrangement in which an investigator owes duties of loyalty, competence, communication, and confidentiality to the person or entity that retained them.

Related: Confidentiality, Engagement Letter
Engagement Letter

A written agreement defining the scope of work, fees, deliverables, and limitations of an investigation, helping prevent misunderstandings and documenting client authorization.

Related: Client Relationship, Recordkeeping Requirements
Complaint

A formal allegation filed with the Board claiming a licensee violated statutes, rules, or conduct standards, which triggers review and possible investigation.

Related: Disciplinary Action, Board of Private Security
Disciplinary Action

A sanction imposed by the Board after finding a violation, ranging from reprimand and fines to suspension, revocation, or conditions on a license.

Related: Complaint, Due Process
Due Process

The procedural protections owed to a licensee accused of misconduct, including notice of allegations, an opportunity to respond, and a fair hearing before sanctions.

Related: Disciplinary Action, Administrative Hearing
Administrative Hearing

A formal proceeding before a hearings officer or the Board where evidence is presented and a decision is made on allegations against a licensee.

Related: Due Process, Disciplinary Action
Surveillance

Systematic observation of a person or location to gather information, which must be conducted from lawful vantage points without trespass, stalking, or harassment.

Related: Scope of Authority, Trespass
Trespass

Entering or remaining on property without permission or legal right, which is prohibited for investigators and can void evidence and lead to criminal and licensing consequences.

Related: Surveillance, Scope of Authority
Public Records Request

A lawful method of obtaining government documents and data available to the public, used by investigators to gather evidence without deception or unauthorized access.

Related: Open Records, Scope of Authority
Open Records

Government information that the public may inspect or copy under state law, subject to exemptions for privacy, ongoing investigations, and other protected categories.

Related: Public Records Request, Privacy Rights
Privacy Rights

Legal protections limiting intrusion into individuals' personal affairs, which constrain investigative methods and can create liability when violated without justification.

Related: Surveillance, Open Records
Evidence Handling

The practices of collecting, documenting, preserving, and transferring evidence so it remains reliable and admissible, including chain-of-custody records.

Related: Chain of Custody, Report Writing
Chain of Custody

A documented record showing who collected, handled, and stored evidence at each step, used to demonstrate integrity and support admissibility in legal proceedings.

Related: Evidence Handling, Report Writing
Report Writing

Preparing factual, objective, and timely written accounts of investigative activities, observations, and findings suitable for clients, courts, and regulatory review.

Related: Evidence Handling, Recordkeeping Requirements
Testimony

Giving evidence under oath in a deposition or trial, requiring investigators to rely on accurate records and to present observations honestly and without bias.

Related: Report Writing, Chain of Custody
Arrest Authority

The power to take a person into custody, which private investigators generally lack except in limited citizen's arrest circumstances defined by law.

Related: Scope of Authority, Impersonating an Officer