Private detective or police? Who handles what
Police investigate crimes for the state. A private detective investigates facts for you. The difference decides who you call, and when you need both.
The core difference
Law enforcement serves the public. Officers decide what to investigate based on whether a crime occurred, the evidence available and department priorities. They do not work for you, cannot share most of their file with you and will not gather evidence for your divorce, custody case or civil suit.
A licensed private detective works for the client, within the law. A private detective has no arrest powers, no warrants and no access to law-enforcement databases, but can devote as many hours as you fund to your specific question, document the facts to court standard and testify about them in a civil, family or criminal case.
When the police are the right call
- A crime is in progress or someone is in danger. Call 911.
- A missing child, or a missing adult with a medical or safety risk. Report immediately; Tennessee has no waiting period for a missing-person report.
- Theft, assault, threats, stalking or domestic violence. A police report also matters later for protective orders and civil claims.
- Fraud with identifiable suspects and losses. Report it; a report number is often required by banks and insurers.
A private detective can run alongside a police case, but should never interfere with it.
When a private detective is the right call
- Infidelity, cohabitation, custody conduct and other family-law facts. Police do not investigate marriages.
- Locating a person for a lawsuit, a debt, an inheritance or a reunion.
- Asset searches to collect a judgment or inform a divorce.
- Background investigations on a business partner, a tenant, a caregiver or a fiancé.
- Workplace theft and misconduct an employer wants documented before deciding on discipline or referral.
- Criminal defense: independent fact-finding for the accused, which police do not do.
- Insurance and workers’ compensation claim verification.
When you need both
Many matters involve both. A missing adult is reported to police and a private detective works the locate in parallel, feeding leads to the detective assigned. An embezzlement is documented by a private detective so the employer can decide whether to refer it to prosecutors with a clean file. A stalking victim keeps a police report active while a private detective documents the pattern for an order of protection.
The rule is simple: public safety and crimes go to the police first; the facts you need for your own decision or case go to a licensed private detective; and the two should cooperate, never compete.
Three Nashville situations, three answers
A daughter stops answering her phone
Report her missing to Metro Nashville police the same day; there is no waiting period for an adult. Then call a private detective to canvass her last-known locations, pull lawful locates on her contacts and check hospitals and shelters while the police report works through the system. Feed every lead to the assigned detective. Both tracks run at once, and neither interferes with the other.
A bookkeeper’s numbers do not add up
Do not call the police yet. Preserve records, limit who knows and have a licensed private detective and your accountant document the pattern. With a clean file, you can decide between termination, restitution, an insurance claim and a referral to prosecutors; a detective receiving a documented package will act on it faster than on a vague complaint.
An ex keeps violating the parenting plan
Police generally will not enforce a civil parenting plan absent a crime. This is a family-court matter: document the violations lawfully, hire a private detective for the conduct you cannot see, and let your attorney seek enforcement. If a child is in immediate danger, that is a 911 call, not a documentation project.
Protective orders and stalking: where the two meet
Orders of protection are civil, but violating one is a crime. A private detective can document the pattern that supports the petition (the vehicle outside the house at 2 a.m., the repeated “coincidental” appearances) and can serve the respondent once the order issues. The police enforce the order after it exists. Victims often need both: the documentation to get the order and the enforcement to make it mean something. Keep the police report numbers; attach them to the petition.
What to expect from each
| If you call police | If you hire a private detective | |
|---|---|---|
| Who decides what gets investigated | The department | You, within the law |
| Cost | None directly | Hourly or flat fee |
| What you receive | A report number; limited updates | A full report and exhibits |
| Confidentiality | Reports may become public records | Private contract; see our confidentiality guide |
| Can it be used in your civil case | Through records requests and subpoenas | Directly, with testimony |
| Timeline | Caseload-driven | Scope-driven |
Why clients choose private first in some matters
Some situations are better investigated privately before any public report: a suspected embezzlement by a long-time employee where the facts are not yet clear, a family concern about an elderly parent’s companion, a possible affair that may turn out to be nothing. A private investigation can be stopped quietly if the suspicion was wrong; a police report cannot be un-filed. When the facts turn out to warrant it, the documented file becomes the basis for a police report that gets attention. The order matters, and a licensed private detective will tell you honestly when the situation is one where the police must come first.
How cooperation actually works
When a client’s matter overlaps a police investigation, Pinnacle’s practice is to identify ourselves to the assigned detective, share what is useful and lawful to share, and stay out of their way. Detectives generally welcome a documented witness canvass, a located witness or a confirmed address; they do not welcome a private detective who contaminates a scene or tips off a suspect. Clients benefit from both tracks only when they run cleanly alongside each other.
Getting police records for your own matter
- Incident and accident reports: usually available to involved parties and, once closed, by public-records request.
- Body-camera and dash-camera footage: available through records requests in many cases, with redactions and timelines that vary by agency.
- 911 recordings: often obtainable by request; retention periods are short, so ask early.
- Investigative files in open cases: generally not available until the case closes; your attorney can seek them through discovery in a related civil case.
A private detective can prepare and follow up on records requests, and can use what is released to direct further investigation.
Myths about private detectives and police
- “Private detectives have access to police databases.” No. Licensed private detectives use commercial and public sources, not law-enforcement systems.
- “A private detective can make an arrest.” No more than any citizen.
- “If the police dropped it, nothing can be done.” Civil remedies, protective orders and independent fact-finding remain available.
- “Former officers can get things others cannot.” Not lawfully. The license and the method are what matter.
Why the division of labor exists
The public and private roles are separate on purpose. Police investigate crimes because the state has an interest in prosecuting them and the power to compel evidence by warrant and subpoena. That power comes with limits that protect everyone, including the accused, and with priorities set by public need rather than private interest. A private detective has no such power and, in exchange, owes loyalty to the client within the law: your question, your scope, your report.
Most of the frustration people feel with the police comes from expecting them to do private work, and most of the trouble people get into with private detectives comes from expecting them to do police work. Understanding the division lets you use each for what it is good at. Report crimes and danger to the police, promptly and completely. Hire a licensed private detective for the facts you need for your own decisions and cases. Let them cooperate, and keep your expectations matched to what each can lawfully do.
A theft, handled in the right order
A Nashville dental practice suspected a front-desk employee of pocketing cash co-pays. Rather than calling the police on a suspicion, the practice engaged counsel and a licensed private detective. Covert video on the practice’s own premises and a reconciliation of the ledger documented the pattern across three weeks. The practice terminated the employee with a complete file, recovered part of the loss under its insurance, and then made a police report with the file attached. A detective called within days. Reversed, the order would have produced a report with no evidence, a tipped-off employee and no recovery.
How the evidence differs
| Police | Private detective | |
|---|---|---|
| Who it belongs to | The state | You and your attorney |
| Access to the file | Limited; public records requests and discovery | Full; you receive the report |
| Purpose | Prosecution | Your decision, negotiation or case |
| Powers | Arrest, warrants, subpoenas, LE databases | Observation, public records, interviews, lawful databases, testimony |
| Speed | Set by caseload | Set by your scope |
Questions people ask before they call
Police reports are often public records once a case is closed or when a victim requests their own; a private detective can request them through the same lawful channels.
Often, when the private detective is professional and brings useful, lawfully gathered information. We never interfere with an active investigation.
No. A private detective has the same powers as any citizen, which are narrow.
A private detective can investigate independently and present new facts to law enforcement or to your attorney; whether a case is reopened is a prosecutorial decision.
Many are excellent. What matters most is the license, the methods and the documentation. Ask the questions in our hiring checklist.
No. We are a licensed private detective agency serving clients and attorneys. We cooperate with police when appropriate and lawful.
Services and resources
Talk to a Nashville private detective.
Call 615-977-9929 or email contact@delatorgroup.com. Confidential, no obligation, all 95 Tennessee counties.