Discover the Truth
With over 30 years of investigative experience, our agency is committed to uncovering the facts that matter. From civil disputes and criminal defense to personal concerns, we deliver clear, compelling results that support your goals. Whether you're seeking answers, peace of mind, or evidence for court, we provide professional, discreet investigative services you can trust.
Focused on Results
Professional Expertise
With decades of investigative experience, our team brings a deep understanding of legal, personal, and corporate investigations. As the licensed operator behind “Tracey D. Allen, Investigations” (South Dakota, Montana, Rhode Island) and TDA Investigations & Associates (California), I lead a network of professionals dedicated to delivering results with integrity, discretion, and attention to detail. Our work is trusted by law firms, businesses, and private clients across multiple jurisdictions.
Tailored Investigative Solutions
Every case presents its own set of questions—and we build every investigation around finding the answers that matter most to you. Whether it’s uncovering evidence, verifying information, or solving complex problems, we design our approach based on your unique situation. With a commitment to efficiency, transparency, and actionable outcomes, we keep you informed from start to finish while safeguarding your privacy at every step.
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Licensed, Bonded, and Insured
TDA Investigations & Associates and Tracey D. Allen Investigations operate with full licensure, bonding, and insurance to ensure compliance and client confidence across multiple jurisdictions:
California – BSIS Private Investigator Licenses #22444 and #28686
Montana – Private Investigator License #44934
Rhode Island – Private Investigator License #125279
South Dakota – Business License #UB288955
Our credentials reflect our commitment to professionalism, accountability, and lawful investigative practice in every state we serve.
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Trusted Investigator
Dedicated to delivering accurate results with discretion and professionalism.
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30+ Years of Investigative Experience
Client-Focused
Helping Clients Uncover the Truth in Civil, Criminal & Family Matters for Over 30 Years
What Clients Say
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I had the pleasure of working with Mr. Allen for over one year on a multi-million dollar case, and I can state with confidence that Mr. Allen is a motivated, disciplined, and responsible professional with a high degree of integrity. He had responsibility for investigation locations and collecting statements and potential evidence. The case was a combined federal criminal and civil case involving thousands of documents and several witnesses. The case concluded very successfully. As such, I expect that Mr. Allen and TDA Investigations would provide positive and efficient investigatory needs for any law firm or other private business.
Richard M. Freeman,Esq., Sheppard, Mullin, Richter & Hampton LLP, San Diego, CA
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"Tracey's law enforcement background was important to me when I was choosing a private investigator. Tracey's investigative work was always discreet and conducted in a professional and businesslike manner. Tracey has a solid work ethic and his investigations always lead to useful results."
Donald B. Griffith, Superior Court Commissioner, Superior Court of California, County of Kern
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"I can state with confidence that Mr. Allen is a motivated, disciplined, and responsible professional with a high degree of integrity. ... I sincerely hope you give Mr. Allen and TDA Investigations favorable consideration."
Lyndsay DeMatteo, Esq., DeMatteo Law Firm, Sioux Falls, SD
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"Mr. Allen is responsible. He provides valuable updates on the investigation and a complete and documented report at its conclusion. His reports are unbiased, credible, and thorough. The insights Mr. Allen provides as a former police officer and an experienced investigator are very helpful in looking at the incident from a different perspective."
Edward W. Baughan, Esq.,Gajewski & Baughan: Attorneys At Law, Culver City, CA
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"In my experience, Mr Allen conducted himself with the highest degree of integrity and professionalism. His assistance was crucial in getting an eyewitness ID case dismissed for one of my clients. ... I have no doubt that he would conduct himself in a similar manner for any PI work . He is a smart and thorough investigator, and I recommend Mr Allen without hesitation."
Scott A. Borthwick, Esq., Law Offices of Villalobos & Borthwick, Irvine, CA
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"I had used Mr. Allen and TDA investigations services primarily to locate defendant's home address, business address and potential evidence to served them with conformed Lawsuit documents to assistant in resolving my client's litigation cases in a timely matter. His conduct for investigation locations and potential evidence collected during his search is speedy and professional. "
K.T. Tran, Esq., Law Offices of K.T. Tran, Downey, CA
Let’s Start Your Investigation
When the truth matters, timing is everything. Whether you're facing a personal challenge or a complex legal issue, we’re here to help. Contact us for a free, confidential consultation—our team will listen, assess your needs, and recommend a strategic investigative plan designed just for you.
FAQ
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We specialize in civil and criminal defense investigations, marital issues, child custody cases, background checks, skip tracing, accident investigations, and more. Contact us to discuss your specific situation.
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Yes, all investigations are conducted legally and ethically, and the findings are admissible in court. We also provide expert testimony when required.
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Timelines vary based on the complexity of the case. Some cases can be resolved in a few days, while others may require weeks. We will keep you updated throughout the process.
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Absolutely. Confidentiality is our priority, and all client information is handled with the utmost discretion and security.
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Simply call or email to schedule a free consultation. We will listen to your concerns, explain the process, and outline the next steps to begin your investigation.