A Private Detective: What Is It For and How Does It Work?
- Caroline Hébert

- Nov 23
- 7 min read
Hiring a private detective is a serious, pragmatic step, and in some cases, the only option available for getting clear answers to complex personal situations. It is a concrete and legal solution for turning doubts into certainties and making important decisions based on documented facts.
When Should You Call a Private Detective?
When facing a difficult time, uncertainty can become a great source of anxiety. It is precisely in these moments that a professional investigator becomes a strategic partner. The objective is to find factual solutions when traditional methods have reached their limits.

Hiring a private detective allows you to obtain tangible evidence that is, above all, admissible in court. The information collected by a licensed professional is governed by strict ethics and laws, which guarantees its validity if you need to use it in legal proceedings.
Situations Where an Investigation Makes All the Difference
The reasons for consulting an investigator are varied, but they all share a common point: the need for reliable information. Whether the issues are family-related, financial, or personal, the detective brings the clarity required to help you move forward.
Here are some specific examples where our intervention is crucial:
Background Checks: Before entering a new serious relationship, signing a lease with a tenant, or hiring a new employee, it is often wise to verify someone's past to protect yourself from possible unpleasant surprises.
Locating People: To find a missing loved one, a biological parent, a vanished debtor, or an untraceable heir in the context of an estate.
Cases of Harassment or Threats: Identifying the perpetrator, gathering evidence, and ensuring a person’s safety.
Suspicions of Fraud or Theft: Intervention in cases of suspected financial fraud, theft of property, or personal data.
Suspected Infidelity: To confirm or dispel doubts about a partner's faithfulness and, if necessary, obtain solid evidence for divorce proceedings.
Child Custody: To ensure custody conditions are respected, that the child’s well-being is not compromised, or to check the actual lifestyle of an ex-spouse and possible undeclared work as part of a child support review.
Suspicious Behaviors: Surveillance, monitoring, or infiltration in situations involving dubious actions, often in family, neighborhood, or workplace contexts.
Protecting Vulnerable People: Monitoring discreetly an adolescent who appears to be going astray, or ensuring that an elderly parent is not a victim of physical abuse, breach of trust, or financial manipulation.
Asset and Property Search: Locating hidden assets, real estate, or financial holdings in situations involving separation or debt recovery.
Private Investigation in Quebec: A Profession Regulated by Law
Hiring a private detective has nothing to do with Hollywood scenarios. In Quebec, it is a highly regulated process, particularly by the Private Security Act, which sets the rules and protects the public, ensuring professionalism, ethics, and safety. This is your best guarantee that your case will be handled with full legal respect.
In Quebec, no one can perform investigative activities without holding a valid license, for both the agency and each investigator in the field. This legal requirement ensures that the professionals you entrust your concerns to have the necessary skills, training, and integrity.
The Bureau de la sécurité privée, better known as BSP, is the guardian of this law. This provincial body issues licenses, oversees the practices of agencies and detectives, and enforces sanctions if the rules are not followed.
A detective who holds a BSP license is not free to do as they please; they have strict obligations:
Respect for Privacy: Every action, from surveillance to information gathering, must fully comply with Quebec and Canadian privacy protection laws.
Absolute Confidentiality: All the information you receive, along with investigative findings, is sealed by professional secrecy.
Factual and Objective Reports: The final report you receive must be an impartial account of observed facts, without judgment or subjective opinions.
What a Private Detective Can and Cannot Do
It is important to understand the line between a private detective’s powers and limitations. Despite what you might see in films or TV series, not everything is allowed in private investigation.

An investigator has the right to observe and document facts occurring in public places, consult legally accessible databases, and conduct interviews. It is the art of finding information where it is legally available.
On the other hand, some actions are outright illegal. No true professional will suggest crossing these red lines:
Electronic surveillance without the consent of at least one recorded party.
Installing a GPS tracker on a vehicle without the owner’s authorization.
Obtaining bank statements, a credit report, phone records, or medical files without the owner’s permission.
Impersonating a police officer or any other authority figure.
Disclosing someone's address or contact information to a civilian without their consent.
Remember: if police officers need a warrant to perform a particular investigative action or technique, the private investigator is equally unable to proceed without legal permission.
Choosing a licensed private detective means choosing a legal, ethical, and effective approach. It is the only way to ensure your search for the truth doesn't take you into a legal gray area filled with risks.
Choosing the Right Private Detective for Your Case
Finding the right professional to conduct your investigation is, without a doubt, the most decisive step. A poor choice can not only compromise your case, but also worsen an already tense situation. To select a detective who is both competent and trustworthy, proceed methodically and rely on objective criteria rather than empty promises.
Approach this process as you would hiring a consultant: validate qualifications, verify BSP licensing, understand their approach, and ensure smooth communication. This initial rigor is your best guarantee for solid, legal results and peace of mind.
Essential Questions to Ask at First Contact
The first conversation is the key moment to assess if the agency contacted is right for you. Not all agencies and investigators offer services in every area of investigation. This first contact, usually free and always confidential, is fundamental. It's your chance to present your situation, doubts, and objectives, without fear of judgment. Don’t hesitate to ask precise questions and expect clear answers. A true professional will appreciate your thoroughness.
During this exchange, the investigator listens carefully, asks precise questions to fully understand the issues, and assesses whether the desired intervention is feasible and legal. This frank discussion allows you to determine together if an investigation is the right way forward.
A good investigator will listen attentively, ask the right questions to clearly identify your needs, and suggest a realistic action plan. Be wary of agencies promising 100% guaranteed results or mentioning methods that seem illegal.
Here is a list of crucial questions to address:
Have you handled cases similar to mine before? An agency specializing in commercial fraud may not have the same approach for a sensitive child custody matter; relevant experience is an asset.
How will you keep me informed about progress? Communication is key to success. Set the frequency and preferred method (call, email, detailed report) from the start.
Can you provide a detailed cost estimate? Demand clear pricing: hourly rates, travel expenses, administrative fees, etc. Financial clarity builds trust.
What are the legal limits to your actions? A good detective knows their limits and should be able to explain what they can and cannot do, demonstrating their mastery of the legal framework.
Finally, the element that seals your collaboration is the investigation mandate, also called the service contract. This document should be your roadmap, precise and detailed. It must clearly state the mission objectives, methods to be used, budget allocation, and intervention limits. It protects you as much as it protects the agency, ensuring everyone is on the same page. It’s the best way to avoid misunderstandings.
Anticipating the Cost of a Private Detective
Cost is naturally a major concern when considering hiring a private detective for a personal case. It’s crucial to understand how agencies structure their fees to set a realistic budget and avoid surprises. It helps to view it less as an expense and more as an investment for obtaining clear answers, tangible evidence, and above all, making informed decisions.
The most common model in Quebec is hourly billing. This rate may vary depending on the investigator’s experience, the complexity of the mandate, and the type of intervention required. For surveillance or tailing, for instance, rates generally range from $75 to $125 per hour.

Beyond hourly rates, other options exist. For well-defined missions, like a background check or locating a person, some agencies offer fixed-price packages. The advantage is clear: you know exactly how much it will cost from the outset.
You should also anticipate additional expenses that may arise during the mandate. These expenses cover investigation-related costs, typically including:
Kilometers travelled during trips.
Fees to access certain specialized databases.
Meals or accommodation if the investigation extends over several days or a large distance.
Other expenses may occur, like the cost of admission to an event or location where someone must be followed or monitored.
Frequently Asked Questions About Private Detectives
Even after exploring services, legal framework, and costs, questions often remain. Starting an investigation is an important decision.
Will my investigation remain 100% confidential?
Absolutely. Confidentiality is not just a promise; it is the very foundation of the profession, a legal and ethical obligation for any licensed investigator in Quebec. No information will ever be shared without your explicit authorization, except in one specific situation: when the investigation report is submitted as official evidence in legal proceedings.
Will the evidence you obtain be valid in court?
Yes, and that is precisely one of the main advantages of hiring a professional. Private detectives ensure that every piece of evidence—whether a photograph, video, or surveillance report—is collected in strict compliance with Quebec laws on privacy.
The investigative report is factual, impartial, and meticulous. It is designed from the start to be robust and probative. Its structure and content are tailored to be perfectly admissible in court, whether for divorce, child custody disputes, or other civil matters.
How long does an investigation usually take?
There is no standard answer because every case is unique. The complexity of your situation dictates the investigation’s duration. A simple background check may be settled in a few hours. In contrast, surveillance in an infidelity case or searching for a person can take several days or even weeks.
A good detective will always realistically assess your situation during the first consultation. You’ll receive a fair estimate of the time and budget required to reach your goals, allowing you to make an informed decision.
For more details and even more answers, feel free to consult the FAQ section of our website.
To obtain clear answers and solid evidence, trust the expertise and discretion of Nemesis Investigation & Polygraphy. Contact us for a confidential consultation and discover how we can turn your doubts into certainties.
Némésis offers criminal profiling services, polygraph testing, investigation, and investigative analysis to Quebec police forces, legal professionals, as well as any entity or citizen requiring specialized expertise in private investigation.
