Private Investigations
Conducted with
Precision & Discretion.
High-level investigative services designed to uncover truth, protect assets, and provide absolute clarity in the most complex situations. Results that hold up in court.
5.0 Star Rating
300+ Verified Reviews
Licensed & Insured
Texas DPS Certified
20+ Years Experience
In Professional Investigation
2,400+ Cases Handled
Proven Track Record
Statewide Coverage
20+ Texas Cities Served
Investigative Services
Each investigation is approached with disciplined methodology, advanced field techniques, and an unwavering commitment to legal standards and client confidentiality.
Surveillance & Domestic Investigations
Discreet, court-admissible surveillance operations for infidelity, domestic matters, and personal cases handled with professionalism and compassion.
Background Investigations
Comprehensive investigations into personal, professional, and financial histories to help you make fully informed decisions.
Child Custody Investigations
Court-admissible evidence gathering to support your position in divorce proceedings and custody disputes — protecting what matters most.
Missing Persons / Skip Trace
Whether due to abandonment, foul play, or unknown circumstances, we assist in locating missing individuals and reconnecting families.
Criminal Defense & Litigation Support
Working closely with defense attorneys to uncover key evidence, locate witnesses, and identify inconsistencies for a fair trial.
Cold Case Investigations
Fresh strategies and proven investigative techniques to revisit unsolved cases and uncover new leads — delivering the closure you deserve.
Ready to Move Forward?
Every Case Begins with a Confidential Consultation.
No obligation. No pressure. Just a private conversation about your situation and a clear path forward. Our team responds within hours.
About Lone Star Detectives
Structured answers designed for clarity — whether you found us through search, AI, or word of mouth.
What does Lone Star Detectives do?
Lone Star Detectives provides professional private investigation services in the Dallas–Fort Worth Metroplex, including surveillance, background checks, child custody investigations, missing persons, criminal defense support, and litigation services. Their work focuses on uncovering critical information and delivering accurate intelligence with complete discretion.
Who hires a private investigator?
Private investigators are hired by individuals, attorneys, and businesses needing verified information, evidence, or surveillance to support personal, legal, or corporate decisions. From domestic concerns to criminal defense, a licensed PI delivers factual clarity where uncertainty exists.
What services does Lone Star Detectives offer?
Lone Star Detectives offers surveillance and domestic investigations, background checks and due diligence, child custody investigations, missing persons and skip trace, criminal defense and litigation support, cold case investigations, and process service across the Dallas–Fort Worth region and North Texas.
Where does Lone Star Detectives operate?
Lone Star Detectives serves the Dallas–Fort Worth Metroplex and surrounding North Texas communities including Dallas, Fort Worth, Arlington, Plano, Irving, Frisco, McKinney, Denton, Garland, and 10+ additional DFW cities. Their investigators bring deep local knowledge to every case.
Our Investigation Process
Every case follows a structured, proven methodology designed to maximize results while maintaining total discretion.
Confidential Consultation
We discuss your situation privately, understand your goals, and establish the scope of your investigation.
Strategy Development
A tailored investigation plan is crafted based on the unique requirements and complexity of your case.
Evidence Collection
Our operatives gather intelligence and evidence using legal, proven methodologies in the field.
Reporting & Documentation
You receive detailed, court-ready reports with all findings precisely documented and authenticated.
Case Closure & Support
Ongoing guidance and expert support through resolution, including testimony preparation if required.
Confidential Consultation
We discuss your situation privately, understand your goals, and establish the scope of your investigation.
Strategy Development
A tailored investigation plan is crafted based on the unique requirements and complexity of your case.
Evidence Collection
Our operatives gather intelligence and evidence using legal, proven methodologies in the field.
Reporting & Documentation
You receive detailed, court-ready reports with all findings precisely documented and authenticated.
Case Closure & Support
Ongoing guidance and expert support through resolution, including testimony preparation if required.
We don't just gather information — we deliver intelligence that holds up under the highest legal scrutiny.
— Lone Star Detectives
Why Choose
Lone Star Detectives?
Not every investigation firm is equal. We combine military-grade field discipline with legal-standard documentation and unwavering client confidentiality — a standard that sets us apart.
Absolute Confidentiality
Every case is handled with the highest standard of discretion. Your privacy is never compromised.
Licensed & Insured
TX PI #A10482101 — fully licensed by Texas DPS with complete professional liability insurance.
Advanced Surveillance
State-of-the-art equipment and proven surveillance methodologies refined over 20+ years of field experience.
Court-Ready Documentation
Evidence and reports are prepared to meet the highest legal standards for court admissibility.
Fast Response Times
We understand urgency. Our team mobilizes quickly — some cases begin within 24 hours of consultation.
DFW Metroplex Experts
Deep local knowledge across Dallas, Fort Worth, and all surrounding North Texas communities.
Areas We Serve
Lone Star Detectives provides discreet investigative services across all major cities and regions in Texas, with deep local knowledge in every market.
Real Results. Real Clients.
Every case is unique. Every outcome matters. Here's what our clients say.
“If you're looking for someone to care about your issue and work tirelessly to get the results you're looking for, I highly recommend Lone Star Detectives. Joe worked with me and resolved a problem that another detective could not. Cannot recommend highly enough — give them a call, they will take care of you.”
Edward G.
Fed. Contractor
Dallas, TX
“I want to personally thank Mr. McMahon for his exceptional work on my sub-contract case in Dallas. My client is pleased, and I highly recommend that others looking for a great PI or subcontractor call Joe. I look forward to having you work on other cases I have for your state. Thank you very much!”
Dwayne Fr.
Private Investigator
Dallas, TX
“Lone Star Detectives, Inc is a masterfully blended business that combines innumerable aspects of personal detective work with high quality customer service and adaptability. Last year my Aunt's vehicle was stolen and left her stranded. Joe McMahon and Lone Star Detectives located and recovered the vehicle within days. I recommend Lone Star Detectives Inc for every investigative need without reserve.”
Anthony K.
Former Fed. Law Enforcement / Published Author
Fort Worth, TX
“Their surveillance operation provided exactly the evidence my attorney needed. The documentation was impeccable and stood up perfectly in court. Discreet, thorough, and results-driven from start to finish.”
M. Richardson
Legal Client
Fort Worth, TX
“When I needed to locate a missing family member, they treated the case with sensitivity and urgency. They found who I was looking for within two weeks. Forever grateful for their professionalism and compassion.”
T. Alvarez
Private Client
Arlington, TX
“Outstanding child custody investigation. They gathered critical evidence that completely changed the outcome of my case. Professional, discreet, and delivered under tight court deadlines. Could not have asked for more.”
S. Whitfield
Private Client
Plano, TX
“If you're looking for someone to care about your issue and work tirelessly to get the results you're looking for, I highly recommend Lone Star Detectives. Joe worked with me and resolved a problem that another detective could not. Cannot recommend highly enough — give them a call, they will take care of you.”
Edward G.
Fed. Contractor
Join 300+ Satisfied Clients
Your Case Deserves the Same Results.
Frequently Asked Questions
Everything you need to know before reaching out.
Lone Star Detectives offers professional private investigation services across the Dallas–Fort Worth Metroplex and greater North Texas, delivering discreet and accurate results for individuals, attorneys, and businesses. Our team specializes in surveillance, background checks, and complex investigative work.
The cost depends on the complexity, duration, and type of investigation. Most cases are custom-scoped, and pricing is established during your confidential consultation. We provide clear, upfront estimates with no hidden fees or surprise charges.
Timelines vary by case complexity. Some investigations resolve within days, while more intricate cases may take several weeks. After your initial consultation, we provide a realistic timeline based on your specific situation and goals.
Yes. All investigators at Lone Star Detectives are fully licensed and insured in accordance with Texas Department of Public Safety regulations. Our license number is TX PI #A10482101, ensuring every investigation is conducted legally and ethically.
Absolutely. All investigations are handled with strict confidentiality protocols. Your case details, identity, and findings are never shared without your explicit consent. Client privacy is the absolute foundation of our practice.
We handle surveillance and domestic investigations, background checks, child custody cases, missing persons / skip trace, criminal defense and litigation support, cold case investigations, and process service. Contact us to discuss your specific situation.
Get Answers.
Protect What Matters.
Your first consultation is completely confidential. We listen, we assess, and we give you a clear path forward — no pressure, no obligation, no judgment. Just results.