MI Private Investigator cheat sheet

Private investigators in Michigan are licensed under the Private Security Business and Security Alarm Act, Public Act 330 of 1968, MCL 338.1051 et seq.; the licensing regulator is the Michigan Department of Licensing and Regulatory Affairs (LARA), which acts through its security/business licensing unit.

A PI license is required for a person who, for hire, investigates or obtains information about the identity, habits, conduct, movements, whereabouts, affiliations, associations, transactions, reputation, or character of another person, or who investigates crimes, accidents, or the loyalty of employees.

Licensing structure is tiered: a qualifying (principal) license held by the individual or firm, plus separate employee investigator licenses (often called 'runs') issued to individual investigators who work under the licensed agency.

Application requirements include being at least 18, U.S. citizenship or lawful presence, no disqualifying felony convictions, and completion of required training/experience; fingerprints are submitted for a criminal history check through the Michigan State Police and FBI.

Licensees must carry a surety bond and maintain liability insurance as set by LARA rule; the agency principal is responsible for the conduct of employees acting within the scope of employment.

Prohibited conduct includes impersonating a peace officer, wearing a badge or uniform suggesting law enforcement authority, using a title such as 'detective' in a way implying official police status, and making false statements to obtain a license.

Penalties: operating without a license is a misdemeanor punishable by fine and/or imprisonment; LARA may deny, suspend, revoke, or refuse to renew a license, and may impose civil fines for violations of the Act or its rules.

Licensee must notify LARA of changes in ownership, name, or principal place of business, and must maintain records of investigations and client contracts subject to inspection by the department.

Fourth Amendment search-and-seizure protections bind government actors; a private investigator acting independently is generally not a state actor, but the exclusionary rule can apply if the investigator acts as an agent of police or at their direction.

Trespass to land and trespass to chattels are the primary civil limits on physical intrusion; consent, valid process, or a legal privilege (e.g., citizen's arrest) is required to enter private property without permission.

Michigan's stalking statute, MCL 750.411h, prohibits a course of conduct involving repeated, unconsented contact that causes emotional distress or fear of death or injury; a PI's surveillance can qualify if it is repeated and harassing.

The tort of intrusion upon seclusion reaches highly offensive intrusion into a place where a person has a reasonable expectation of privacy, such as a home interior viewed through a window or a hotel room.

Michigan is a one-party consent state for recording oral communications (MCL 750.539c et seq.); a participant may record, but a non-participant eavesdropping on a private conversation without consent is a felony.

Wiretapping and eavesdropping of electronic communications are governed by federal ECPA (18 U.S.C. §§ 2510-2523) and Michigan's eavesdropping statute; consent of one party is the safe harbor.

Civil rights exposure arises under 42 U.S.C. § 1983 only where state action exists, but common-law claims (false imprisonment, defamation, malicious prosecution, IIED) apply to private investigators regardless.

The Fair Credit Reporting Act (15 U.S.C. § 1681 et seq.) restricts use of consumer reports for employment and tenant screening; an investigator obtaining a consumer report must have a permissible purpose and, for employment, written authorization.

A private citizen may arrest without a warrant only when a felony has in fact been committed and the citizen has reasonable grounds to believe the person committed it, or when a misdemeanor is committed in the citizen's presence (MCL 764.16).

Citizen's arrest must be based on probable cause and delivered promptly to a peace officer; the arresting citizen bears civil liability for false arrest and false imprisonment if the arrest is unlawful.

A private investigator has no greater search authority than a private citizen; searches conducted without consent, warrant, or exigency risk trespass and suppression if state action is later found.

The exclusionary rule applies to evidence obtained by private parties only when the private party acted as an instrument or agent of the government; mere cooperation with police can create agency.

Chain of custody requires documentation of each transfer of evidence: who collected it, when, where, how it was packaged, and every custodian thereafter; gaps can render evidence inadmissible or diminish weight.

Preservation letters and litigation holds should be sent to opposing parties and third-party custodians (e.g., social media platforms) to prevent spoliation; Michigan recognizes spoliation remedies.

Miranda warnings apply only to custodial interrogation by law enforcement; a PI questioning a suspect is not required to give Miranda, but coerced statements may still be inadmissible or give rise to civil claims.

Offense elements must be proven for each charge: e.g., larceny requires trespassory taking and carrying away of another's personal property with intent to permanently deprive.

Interview structure: establish rapport, obtain a free narrative, then use open-ended follow-up, then closed questions to fill gaps; record exact words for later impeachment.

Statements should be written in the witness's own words, signed and dated, with a corrections clause; never draft a statement that changes the witness's meaning.

Evidence collection: photograph the scene before moving anything, use scale markers, log each item with a unique evidence number, and package in appropriate containers (paper for biological, plastic for non-biological).

Reports should be objective, chronological, and factual: who, what, when, where, how, and what was observed versus what was told; avoid conclusions and editorializing.

Case file integrity: maintain a single master file, number pages, log all additions, and never alter original notes; store in a locked location with access limited to assigned personnel.

Contemporaneous notes are discoverable; write them as if they will be read by opposing counsel and a jury.

Client communication should be documented in writing (engagement letter, status updates, final report) to manage expectations and limit liability.

Surveillance types: static (fixed position), mobile (following), and electronic (GPS, cameras); each has different legal exposure and evidentiary value.

Mobile surveillance requires maintaining distance, using multiple vehicles, and avoiding patterns; a 'burn' occurs when the subject detects the surveillance.

Photography and video should include time/date stamps, continuous recording where possible, and a chain-of-custody log for the media card.

Recording in a public place is generally lawful; recording into a private residence or an area with a reasonable expectation of privacy (e.g., a bathroom, hotel room) is not.

Michigan law prohibits installing a device to observe or record a person in a private place without consent (MCL 750.539d); 'private place' is defined by statute.

Counter-surveillance includes checking for GPS trackers on vehicles, sweeping for cameras/microphones, and varying routines; a PI must not remove a tracker without legal authority.

GPS tracking of a vehicle without the owner's consent may constitute trespass to chattels or violate Michigan's tracking statutes; obtain consent or a court order where required.

Preserve original media; do not edit or enhance beyond what is necessary to view, and retain the original file with hash verification if possible.

Court records: Michigan courts provide civil, criminal, and probate records through the Michigan Court of Public Access (MiCOURT) and county clerk/register of deeds offices; federal records via PACER.

Motor vehicle records: the Driver's Privacy Protection Act (18 U.S.C. § 2721 et seq.) permits access only for permissible purposes (e.g., litigation, insurance, licensed investigator use); Michigan Secretary of State records are similarly restricted.

FCRA: consumer reports may be obtained only for a permissible purpose (employment, credit, insurance, tenant screening); employment use requires written disclosure and authorization and pre-adverse-action notice.

Public records sources include Secretary of State business filings, UCC filings, property records, liens, judgments, and vital records; each has access rules and fees.

Social media and open-source research must respect platform terms of service and privacy settings; pretexting to obtain protected information can violate the Stored Communications Act and FTC Act.

Pretexting is prohibited where it involves obtaining financial records under false pretenses (Gramm-Leach-Bliley Act) or government records; identify yourself truthfully when required by law.

Records requests under Michigan's Freedom of Information Act (MCL 15.231 et seq.) apply to public bodies, not private parties; response timelines and exemptions apply.

Document the source, date, and retrieval method for every record; unverified database hits must be confirmed with primary sources.

Confidentiality: client information is confidential and should not be disclosed without consent or legal compulsion; a subpoena may require disclosure, and counsel should be consulted.

Conflicts of interest: screen new matters against existing clients and adverse parties; disclose any conflict and obtain informed consent or decline the engagement.

Fees should be set in a written engagement letter specifying rate, retainer, expenses, and billing frequency; contingent fees for investigative work in criminal matters raise ethical concerns.

Misrepresentation: never falsely claim to be law enforcement, an attorney, or a government official; never fabricate evidence or coach a witness to change testimony.

Testimony must be truthful and based on personal knowledge; a PI may not testify to hearsay as fact or offer opinions outside expertise.

Client relations: set scope, deliverables, and reporting cadence in writing; document all client instructions and changes.

Ethical duties extend to the court and the public: avoid harassment, stalking, and invasion of privacy even when the client requests aggressive tactics.

Retain records per statutory and contractual requirements; destruction should follow a written retention policy and litigation hold obligations.

Contracts: use a written services agreement covering scope, fees, confidentiality, limitation of liability, indemnification, and termination; have counsel review templates.

Insurance: maintain general liability, professional liability (errors and omissions), and, where firearms are carried, additional coverage; verify certificate of insurance.

Recordkeeping: retain client files, contracts, and investigative reports for the period required by LARA rule and applicable statutes of limitation; secure storage and access controls.

Workplace safety: conduct risk assessments for field work, use check-in protocols, and have a written emergency plan; solo surveillance carries elevated risk.

Firearms: carrying a concealed pistol requires a Michigan CPL or recognition; a PI license does not itself authorize firearm carry, and agency policy should address use.

Vehicle operations: maintain logs, insurance, and safe-driving policies; surveillance driving increases liability exposure.

Data security: protect client and subject PII under applicable privacy laws; use encryption and access controls for digital files.

Tax and employment: classify workers correctly (employee vs. independent contractor) and comply with withholding and workers' compensation requirements.