Portland Head Light at Fort Williams Park in Cape Elizabeth, Maine

Maine investigator matching

Find a Licensed Private Investigator in Maine

Use this page to reach a licensed investigator anywhere in Maine, from Portland and the York County coast to Bangor, Aroostook and the North Woods. Delator Group coordinates the request: you tell us the matter and the town, and we refer it to an independent professional investigator licensed in Maine, who quotes and works for you directly.

  • Investigators licensed in Maine
  • All 16 counties listed
  • Confidential request

Investigator-matching service. In Maine, investigations are performed by independently licensed Maine investigators, not by Delator Group. How this works

  • 16Maine counties listed
  • MSPlicenses Maine investigators
  • 1-partyrecording consent (15 M.R.S. 709-710)
  • 20largest municipalities listed

Quick answer

How do I find a private investigator in Maine?

In Maine the license is called a professional investigator license, and it is issued by the Chief of the Maine State Police through the Special Investigations Unit. Check that anyone you consider appears on the State Police list of licensed professional investigators. If you would rather not search alone, send Delator Group a short description and the town or county. We refer it to an independent investigator who holds a Maine license, and that investigator contacts you, quotes the work and contracts with you directly.

01Why Mainers hire investigators

When a Maine matter calls for a licensed investigator

Maine investigation requests tend to come from ordinary situations that have stopped making sense. A parent in a Cumberland County custody case worries about who is in the other home during weekend visits. A family in Penobscot County cannot reach an elderly relative and suspects someone is steering their money. A small manufacturer in York County thinks a former employee left with customer lists. An insurer doubts that a worker on a claim near Augusta is as limited as the paperwork says. In each case, someone needs facts gathered lawfully and written up in a form a lawyer or a court will accept.

Maine treats that work as regulated. Under Title 32, Chapter 89, a professional investigator is anyone who engages in or solicits business or accepts employment to conduct private investigations, and the chapter defines private investigation to include obtaining information about a person's conduct, movements or whereabouts and securing evidence for use in court. So the first step is not picking the slickest website. It is confirming that the person you hire holds a current Maine license and knows the part of the state where your matter is happening.

  • Family matters: divorce, parental rights and protection from abuse cases
  • Civil litigation: locating witnesses, taking statements, researching assets
  • Insurance and workers' compensation claim reviews
  • Business concerns: employee theft, fraud and due diligence on a partner
  • Elder concerns: suspected financial exploitation or scams

02Licensing

How licensing works for a private investigator in Maine

Maine licenses investigators through Title 32, Chapter 89 of the Maine Revised Statutes, the Professional Investigators chapter. The chapter gives licensing authority to the chief, defined as the Chief of the State Police or a designee, and the Maine State Police Special Investigations Unit handles professional investigator licenses, investigative assistant licenses and contract security company licenses. The old Board of Licensure of Professional Investigators has been repealed, so there is no separate investigator board to call. Questions go to the State Police.

Section 8104 says a person may not act as a professional investigator without first obtaining a license from the chief, then lists exceptions such as government employees on official duty, attorneys acting professionally, insurers and adjusters handling claims, genealogists working from public records and some online data firms. Maine also has a second tier. An investigative assistant license, under Sections 8110 through 8110-B, lets a person work as an investigator only under the supervision of a licensed professional investigator who sponsors and employs them. The chapter also includes bonding and insurance requirements and a section restricting identification cards and badges.

Section 8114 makes improper conduct in private investigation a Class D crime. That includes acting as a professional investigator without a valid license, falsely claiming to hold a license, and falsely representing that an employee is licensed. Licensees who show a badge suggesting they are a peace officer, or who knowingly use unlicensed people to investigate, also commit unlawful acts under that section. The State Police publish forms, a handbook and a list of licensed investigators on the professional investigator page. Keep a note of where and when you checked.

Red fall foliage reflected in a still pond in Acadia National Park, Maine
Photo: Terry Granger / Unsplash

03Legal limits

What licensed Maine investigators can and cannot do

A Maine license allows paid investigative work. It does not give police powers. A licensed investigator cannot arrest anyone, force a person to answer questions, search property or enter land or buildings without permission. Most of the work happens in public places, in public and court records, through lawful data services and in voluntary interviews. Recording is governed by Title 15, Sections 709 and 710. Section 710 makes intercepting a wire or oral communication a Class C crime, but Section 709 defines interception as hearing or recording a communication by someone other than the sender, the receiver or a person given prior authority by one of them. Maine is therefore generally treated as a one-party consent state.

Tracking is where many requests go wrong. Maine's stalking statute, Title 17-A Section 210-A, defines a course of conduct to include following, monitoring, tracking, observing or surveilling a person by any action, method or device. A tracker placed on someone else's car without a clear legal basis can become evidence of stalking, which is a Class D crime and higher for repeat offenses. Anyone thinking about a GPS device should speak with a Maine attorney first. A court order or the owner's written consent changes the analysis, which is why the question belongs with counsel.

Federal law adds limits that apply in every state. Pretexting to obtain bank or telephone records is prohibited, and driver records are available only for permitted purposes. Investigators also stay clear of impersonating police, which Section 8114 targets directly. An attorney can confirm how these rules apply to the facts of a particular case. When a request depends on a method that is legally uncertain, a careful investigator will say so before starting rather than after the evidence is gathered.

  • Generally lawful: watching and photographing activity visible from public places
  • Generally lawful: recording a conversation the investigator takes part in
  • Risky: tracking a vehicle or phone without the owner's consent or a court order
  • Not allowed: posing as police or using false pretenses to get bank or phone records

04Regions

Why local knowledge matters across Maine

Maine is a large state with most of its people near the coast and the southern interior. Greater Portland, Lewiston-Auburn, Bangor and the Augusta-Waterville corridor hold the bulk of court activity and employers, and the York County towns along I-95 have grown quickly as people move north from New Hampshire and Massachusetts. Outside those centers, distances open up fast. Aroostook County alone covers a huge stretch of potato country and forest along the Canadian border, and much of northern and western Maine is unorganized territory with logging roads, few residents and no municipal government.

Those differences change how a case is worked. Surveillance in a dense Portland neighborhood looks nothing like surveillance on a camp road in Piscataquis County, where a single unfamiliar vehicle is noticed at once. Seasonal patterns matter too. Coastal and lake towns can double in summer, and winter weather can close roads and stretch a simple field check into a long day. Island communities in Knox, Hancock and Lincoln counties may depend on ferry or boat schedules. Investigators who work those areas plan around them.

Maine is also home to the Wabanaki Nations, including the Penobscot Nation, the Passamaquoddy Tribe, the Houlton Band of Maliseet Indians and the Mi'kmaq Nation. Their relationship with the state is shaped by settlement acts that differ from the arrangements in most other states, so jurisdiction questions near tribal lands should be raised early with counsel. Requests sent to Delator Group are matched by town and county for these reasons.

Blue-green ocean wave breaking on the rocky shore of Acadia National Park, Maine
Photo: Brian Yurasits / Unsplash

05Pricing

How Maine investigators usually price their work

Each investigator sets and quotes their own fees, and the structure depends on the type of work. Surveillance and field interviews are usually billed by the hour, often with a minimum block so a short assignment still covers travel. Mileage or travel time is commonly added for work outside the investigator's home area, which can be significant when a case runs from Cumberland County to Aroostook or Washington County. Database searches, court record copies and filing fees are often billed as expenses at cost.

Many investigators ask for a retainer before they begin and bill against it, then refund or invoice the balance when the work ends. Narrow tasks, such as a single courthouse records search, may be quoted at a set price. Before you agree, ask what the quote covers, how and how often you will receive updates, whether report writing and video preparation are billed separately, and what happens if the subject does not leave home on a planned surveillance day. Get the terms in a written agreement so there are no surprises later.

06Before the first call

How to prepare for a first conversation with an investigator

A useful first call is short and focused. Write down what you need to learn, why it matters and what you plan to do with the answer. If a case is already filed, have the docket number, the court and county, your lawyer's name and any upcoming hearing dates. For a person, collect full name, date of birth if known, last known addresses, vehicles, employer, a recent photo and their usual routine. For a business concern, gather the records that raised the issue and the names of everyone involved.

Expect the investigator to ask questions about purpose. A licensed Maine investigator will turn down work that looks like an effort to harass someone or to find a person who is hiding for safety reasons, and may ask to see paperwork in a protection order or parental rights case. Mention anything that bears on safety, such as firearms, past violence or an active order. The clearer the picture, the more accurate the quote. When you are ready, send a short request with the town, county and goal.

  • Your goal in one or two sentences
  • Town and county where the activity happens
  • Names, dates of birth, addresses and vehicles you already know
  • Docket number, court and attorney contact, if any
  • Budget range and any firm deadline

Cities

Top 20 Maine cities and towns for private investigator requests

Maine's largest communities include both cities and towns, so this list uses the 20 most populous municipalities of either kind, ranked by July 2024 Census Bureau estimates as published by the state. Towns such as Scarborough, Brunswick and Windham outnumber several cities. Courts sit in county seats and judicial centers, so tell us the town and county when you send a request.

CityCountyWhat to know
PortlandCumberlandLargest city and Cumberland County seat, with the state's busiest port, hospital system and courthouse.
LewistonAndroscogginSecond-largest city, across the Androscoggin River from Auburn, the county seat.
BangorPenobscotPenobscot County seat and the service hub for eastern and northern Maine.
South PortlandCumberlandPortland's neighbor across Fore River, home to the Maine Mall retail district and oil terminals.
AuburnAndroscogginAndroscoggin County seat, where the county's Superior Court sits.
ScarboroughCumberlandFast-growing coastal town south of Portland with beaches, marsh and new subdivisions.
BrunswickCumberlandHome to Bowdoin College and the redeveloped former naval air station, Brunswick Landing.
SanfordYorkInland York County city on Route 109, among the largest communities in southern Maine.
BiddefordYorkFormer mill city on the Saco River and site of the York Judicial Center.
WestbrookCumberlandGrowing Portland suburb that added more residents than any Maine community in 2024.
SacoYorkTwin city to Biddeford across the Saco River, near Old Orchard Beach.
WindhamCumberlandLakes Region town on Route 302 near Sebago Lake, with heavy seasonal traffic.
AugustaKennebecState capital and Kennebec County seat, home to the Capital Judicial Center.
GorhamCumberlandWestern Portland suburb with a University of Southern Maine campus.
WatervilleKennebecKennebec River city and home of Colby College, north of Augusta on I-95.
YorkYorkSouthern coastal town near the New Hampshire line; the county seat is in Alfred.
FalmouthCumberlandAffluent town on Casco Bay just north of Portland.
OronoPenobscotHome of the University of Maine flagship campus, near Bangor.
KennebunkYorkCoastal York County town with a large summer population.
WellsYorkBeach town on U.S. Route 1 whose population swells in summer.

Counties

All 16 Maine counties for investigator requests

Maine has 16 counties, listed here by the latest Census Bureau population estimates. Each has a Superior Court presence and a probate court, and District Court locations are spread across the state. Large parts of Aroostook, Piscataquis, Somerset, Franklin, Oxford and Washington counties are unorganized territory with no town government, which affects where records are kept.

CountyCounty seatWhat to know
Cumberland CountyPortlandMost populous county, covering Greater Portland, Casco Bay islands and the Sebago Lake area.
York CountyAlfredSouthernmost county along I-95, with Biddeford, Saco, Sanford and busy beach towns.
Penobscot CountyBangorBangor, Brewer, Orono and the University of Maine, plus wide rural and forest areas.
Kennebec CountyAugustaState government in Augusta and the Waterville area along the Kennebec River.
Androscoggin CountyAuburnCentered on the Lewiston-Auburn twin cities, Maine's second-largest urban area.
Aroostook CountyHoultonVast northern county bordering Canada, with Presque Isle, Caribou and long drives.
Oxford CountyParisWestern mountains county with Rumford, Bethel and ski country near the New Hampshire line.
Hancock CountyEllsworthMount Desert Island, Acadia National Park and many seasonal coastal homes.
Somerset CountySkowheganKennebec River towns in the south and large unorganized forest land to the north.
Knox CountyRocklandMidcoast harbors and year-round island communities reached by ferry.
Waldo CountyBelfastPenobscot Bay county with Belfast and many small farming towns.
Sagadahoc CountyBathSmall coastal county where Bath Iron Works is a major employer.
Lincoln CountyWiscassetMidcoast peninsulas such as Boothbay and Damariscotta, with seasonal swings.
Washington CountyMachiasEasternmost county, with the Calais border crossing and Passamaquoddy communities.
Franklin CountyFarmingtonUniversity of Maine at Farmington and western lakes and mountains.
Piscataquis CountyDover-FoxcroftLeast populous county, including Moosehead Lake and remote North Woods townships.

Investigation types

Investigations licensed Maine investigators handle

These are the request types Delator Group most often refers to licensed Maine investigators. Each investigator decides which work to accept and how to carry it out. The descriptions explain what the work generally involves in Maine so you can describe your need clearly when the investigator contacts you.

How matching works

How investigator matching works in Maine

  1. 01

    Send your request

    Use the contact form or call. Describe what you need, the town and county, any deadline and how you prefer to be reached. Keep sensitive details brief until you speak with the investigator.

  2. 02

    Request review

    Delator Group reviews the request for completeness and a lawful purpose, and may ask a follow-up question about location, timing or whether a court case is open.

  3. 03

    Referral to a Maine investigator

    The request is referred to an independent professional investigator licensed in Maine who works in or near the county involved, so local courts, roads and seasons are familiar.

  4. 04

    The investigator contacts you

    The investigator calls or emails you, discusses scope and methods, quotes their own fee and, if you decide to proceed, signs a written agreement with you directly.

  5. 05

    You verify and decide

    Before signing, confirm the investigator's name appears on the Maine State Police list of licensed professional investigators. You are under no obligation to hire.

Licensing

How Maine licenses private investigators

Maine uses the term professional investigator rather than private investigator. The license is issued to individuals by the Chief of the State Police under Title 32, Chapter 89, and the State Police Special Investigations Unit handles applications, renewals and complaints. People who are still building experience can hold an investigative assistant license and work only under a licensed professional investigator who sponsors them. Checking a name against the State Police list takes a few minutes and is worth doing every time.

TopicMaine
Licensing authorityMaine State Police, Special Investigations Unit (licensing authority: Chief of the State Police)
Governing law32 M.R.S. Chapter 89, Professional Investigators (Sections 8103, 8104, 8110 and 8114)
Who needs a licenseAnyone who engages in or solicits business or accepts employment to conduct private investigations must hold a professional investigator license, unless a Section 8104 exception applies; investigative assistants must be licensed and supervised by a licensed professional investigator.
How to verify a licenseCheck the Licensed Professional Investigators list on the Maine State Police professional investigator page, and call the State Police licensing unit if a name is missing or unclear.

Before you hire

What to check before you hire an investigator in Maine

CheckWhy it mattersHow to confirm
Professional investigator licenseActing as a professional investigator without a license is a Class D crime in Maine.Find the name on the Maine State Police list of licensed professional investigators.
Investigative assistant statusAssistants may only work under a sponsoring licensed professional investigator.Ask who supervises the assistant and confirm that person's license too.
No police-style badgeMaine restricts badges and bars investigators from suggesting they are peace officers.Be cautious of anyone who presents a badge or claims police authority.
Written agreementScope, fees, retainer and reporting should be settled before work begins.Ask for the contract and fee terms in writing before paying.
Lawful methodsRecording, tracking and pretexting can carry criminal penalties under Maine and federal law.Ask how evidence will be gathered and whether your attorney agrees.
Local experienceDistances, seasons and courts differ from York County to Aroostook.Ask which counties the investigator regularly works and how far they travel.

How this service works

Important information about investigator matching in Maine

Delator Group is a private investigation firm licensed in Tennessee and headquartered in Nashville. In Maine, Delator Group is not licensed as a private investigator or private investigative agency and does not perform, supervise or direct investigations. Delator Group acts as a private investigation coordinator: we take your request, review it for completeness and refer it to an independent private investigator who holds the license Maine requires (issued by Maine State Police, Special Investigations Unit (licensing authority: Chief of the State Police)).

The investigator you are matched with is an independent business, not an employee or agent of Delator Group. That investigator contracts with you directly, sets and quotes their own fees, decides how the work is carried out and is solely responsible for it. Delator Group may receive compensation from participating investigators for referrals. Delator Group does not provide legal advice, and nothing on this page is an offer of investigative services by Delator Group in Maine. You can confirm any investigator's license with the Maine State Police, Special Investigations Unit (licensing authority: Chief of the State Police) before you hire.

FAQ

Frequently asked questions

Is Delator Group the investigator?

No. In Maine, Delator Group provides coordination and referral only. We review your request and refer it to an independent professional investigator who holds a Maine license. That investigator contacts you, quotes their own fee, signs an agreement with you directly and is responsible for the work. Delator Group is a private investigation firm licensed in Tennessee and headquartered in Nashville.

How do I verify a Maine investigator's license?

The Maine State Police Special Investigations Unit publishes a list of licensed professional investigators on its professional investigator page. Look for the exact name on your contract, and if you are dealing with an investigative assistant, also check the supervising investigator. If a name is missing or the list looks out of date, contact the State Police licensing staff before you pay anything.

Is Maine a one-party consent state for recording?

Generally, yes. Title 15, Section 710 makes intercepting a wire or oral communication a Class C crime, but Section 709 excludes the sender, the receiver and anyone given prior authority by one of them from the definition of interception. Recording a conversation you are not part of without consent is a different matter. Calls with people in all-party consent states raise other questions, so ask an attorney first.

How much does a private investigator in Maine cost?

Each investigator sets and quotes their own fees. Most bill surveillance and field work by the hour, often with a minimum block, plus mileage and expenses such as records fees or database searches. Many require a retainer up front. Narrow tasks are sometimes quoted at a set price. Ask for a written estimate and a list of anything billed separately before you agree.

How long does an investigation take in Maine?

It depends on what you need. A records search or straightforward locate can take a few days. Surveillance follows the subject's schedule and may need several attempts, and winter weather or long drives in northern Maine can stretch timelines. Court-related work follows the hearing calendar. The investigator you are matched with can give a realistic estimate once they know the facts.

Can an investigator find someone's address or phone number?

Often, if the purpose is lawful. Licensed Maine investigators use public records, licensed data services and field checks to locate witnesses, heirs, debtors and relatives. Federal law bars obtaining phone or bank records through pretexting, and driver records are limited to permitted uses. An investigator may refuse a locate that could put someone at risk, such as a person protected by a court order.

Can a private investigator put a GPS tracker on a car in Maine?

Be very careful. Maine's stalking law, 17-A M.R.S. Section 210-A, counts monitoring or tracking a person by any device as part of a course of conduct. Tracking someone else's vehicle without the owner's consent or a court order can expose the person who requested it, as well as the investigator, to criminal and civil risk. Talk with a Maine attorney before anyone places a device.

Is my request confidential?

Your request is shared only with the investigator it is referred to, so they can contact you and evaluate the work. Keep the first message short and save sensitive details for your conversation with the investigator. Ask that investigator how they store, share and eventually dispose of notes, photos and video from your matter.

Will a Maine investigator testify in court?

Many will. Investigators who handle family, civil and insurance matters regularly testify about what they saw and the records they collected, in District Court, Superior Court and the Unified Criminal Docket. Ask whether testimony and deposition time are billed separately, and involve your attorney early so notes, photos and video are preserved in a usable form.

What if my matter crosses into New Hampshire or another state?

Each state licenses investigators separately, so a Maine license does not cover work done in another state. If part of the matter is across the line, mention it in your request. Delator Group also has matching pages for New Hampshire, Massachusetts and Vermont. Work in Canada raises separate legal questions and should be discussed with counsel first.

Nationwide

Find an investigator in another state

Delator Group is headquartered in Nashville, Tennessee, and is licensed as a private investigation firm in Tennessee. In Maine, Delator Group provides investigator referral and coordination only; investigations are performed by independently licensed Maine investigators. Photography: Karson / Unsplash · Terry Granger / Unsplash · Brian Yurasits / Unsplash. Last reviewed .

Delator Group Private Investigators seal

Delator Group · Investigator matching in Maine

Tell us what you need investigated in Maine

Send a short description of the matter and the town, whether it is in Portland, Lewiston, Bangor or a township in the County. We will refer it to an independent investigator licensed in Maine who works that area. The investigator contacts you about scope and price, and you decide after checking the license.

Delator Group Private Investigators sealDelator Group · Nashville headquarters · In Maine, investigations are performed by independently licensed investigators who contract with you directly