If you’re searching for professional help to uncover the truth, you’ve likely typed a few different terms into your search bar. Maybe you looked for a private detective Dallas, or perhaps you searched for a private investigator in the DFW Metroplex. While the terms often get used interchangeably in movies and TV shows, many North Texas residents wonder: is there actually a difference?
At Armstrong Investigations, PLLC, we get asked this question more often than you’d think. Whether you’re in Dallas, Fort Worth, or deep in the suburbs of Collin or Denton County, understanding exactly who you are hiring: and what they are legally allowed to do: is the first step toward a successful investigation.
The Short Answer: It’s All in the Name
In the State of Texas, the terms "private detective" and "private investigator" (PI) are essentially two names for the same professional role. However, there is a legal distinction you need to be aware of when it comes to licensing and how the law views these professionals.
Under the Texas Occupations Code Chapter 1702, the state officially regulates "private investigators" and "investigations companies." While a firm might market itself using the term "private detective Dallas" to appeal to what people commonly call the profession, their license from the Texas Department of Public Safety (DPS) will say "Private Investigator."
So, if you’re looking for someone to handle Dallas surveillance services or a complex background check, don't get caught up in the "detective vs. investigator" debate. What matters is that they are licensed, insured, and experienced in the specific type of case you have.
Private Investigator vs. Police Detective: The Real Distinction
While "private detective" and "PI" are the same in the civilian world, there is a massive difference between a private investigator and a police detective. This is where most of the confusion stems from for residents in Dallas, Rockwall, and Ellis counties.
1. Authority and Arrest Powers
A police detective is a sworn law enforcement officer. They work for a government agency (like the Dallas Police Department or the Tarrant County Sheriff's Office), they have the power to make arrests, and they can execute search warrants.
Armstrong Investigations, PLLC and other private firms are civilian professionals. We do not have arrest powers, and we are not law enforcement. We are highly skilled at gathering information, conducting surveillance, and finding things that others miss, but we operate within the bounds of civil and criminal laws applicable to all private citizens.
2. Who They Work For
Police detectives work for the state or city. They prioritize cases based on criminal statutes and public safety. A private detective Dallas works for you. Whether you are a legal professional, a business owner, or a private individual, our loyalty is to your case and your specific objectives.
3. Types of Cases
Police detectives focus on criminal acts: robbery, assault, or public fraud. Private investigators, on the other hand, handle a much broader range of issues, including:
- Family Law Matters: Infidelity investigations and child custody cases across the DFW Metroplex.
- Corporate Investigations: Background checks and internal theft.
- Legal Support: Witness statements and evidence gathering for civil litigation.
Why Licensing Matters in North Texas
In Texas, you cannot simply print a business card and call yourself an investigator. The Texas DPS Private Security Bureau has strict requirements for anyone performing investigative services.
When you are choosing a DFW private investigator, you should always verify their license number. For example, Armstrong Investigations, PLLC operates under Texas DPS Lic. #: 166353101.
Hiring an unlicensed "detective" isn't just risky: it can ruin your case. Evidence gathered by an unlicensed individual is often inadmissible in a Texas courtroom. Whether your case is in a Dallas County court or a smaller jurisdiction in Rockwall, you need to ensure every piece of evidence is gathered legally by a licensed professional. You can read more about why experience and licensing matter to protect your interests.
Special Considerations for Texas Family Law
Many of our clients come to us during some of the most stressful times of their lives, particularly during divorce or custody disputes. If you are navigating the legal system in Texas, there are two important things to keep in mind:
Temporary Spousal Support (Not Alimony)
In many states, people refer to post-divorce payments as "alimony." In Texas, we use the term Temporary Spousal Support. It is important to note that this is only available in a select number of cases and is subject to strict eligibility requirements. Our investigative work often helps clarify the financial realities that inform these court decisions.
Same-Sex Relationships and the Law
Since the 2015 Obergefell v. Hodges decision, the law in Texas is clear: same-sex couples are treated exactly the same as opposite-sex couples in all Texas family law issues. Whether we are conducting surveillance for a child custody case or investigating a breach of a pre-marital agreement, the legal standards and our investigative approach remain consistent for all DFW residents.
What Can a Dallas Private Investigator Do for You?
If you've decided to hire a private detective Dallas, what exactly should you expect? Modern Dallas investigations are a blend of old-school boots-on-the-ground work and high-tech digital forensic tools.
Surveillance
Surveillance is the bread and butter of our industry. Whether it’s tracking a person’s movements in Arlington or Plano or monitoring a specific location in Denton, we use a tech-forward approach to surveillance to capture clear, actionable video and photographic evidence.
Background Checks and Due Diligence
In a fast-growing area like the DFW Metroplex, knowing who you are doing business with (or who you are hiring) is vital. We go far beyond the "instant" online background checks that are often riddled with errors. We provide strategic intelligence for legal professionals and businesses that need the full picture.
Missing Persons
Locating a person: whether it’s a witness for a trial or a missing family member: requires specific skills and access to databases not available to the general public. We provide specialized services for those looking for a missing persons investigator in Dallas.
The Cost of Dallas Investigations
One of the most common questions we hear is, "How much does a private investigator cost?" In Dallas and the surrounding North Texas area, rates can vary based on the complexity of the case and the experience level of the investigator.
Generally, you can expect to pay for the investigator’s time (hourly rate) plus any expenses like mileage or specialized database fees. We’ve put together a comprehensive guide on private investigator costs in Dallas for 2026 to help you budget for your needs.
Finding the Right Help in the DFW Metroplex
Whether you call us a private investigator or a private detective Dallas, our goal remains the same: to provide you with the truth. We serve the entire DFW Metroplex, including:
- Dallas County: Dallas, Irving, Mesquite, Garland.
- Tarrant County: Fort Worth, Arlington, Mansfield.
- Collin County: Plano, McKinney, Frisco.
- Denton County: Denton, Lewisville, Flower Mound.
- Rockwall & Ellis Counties: For our neighbors to the East and South.
If you are ready to get the answers you deserve, We are here to help. At Armstrong Investigations, PLLC, we combine legal knowledge with professional investigative techniques and J.D.-level insight to ensure you have the best possible support for your case.
Jasen A. Armstrong, J.D.
Armstrong Investigations, PLLC
P: 214-851-3800 | W: armstronginvestigations.com
Texas DPS Lic. #: 166353101 | Affiliated with TCS Consulting (TX DPS Lic. #: C20493) & Howard Law, PLLC