About Us

Adler Group, LLC


Dave Hallman, President and Founder


  I founded the Adler Group in late 2010 to focus solely on domestic issues. Prior to forming Adler Group, I was a member of Talus Group from 2008 until 2010, a firm that conducts investigations and consulting, primarily in the international arena.   For 21 years I was a Special Agent in the Federal Bureau of Investigation (FBI). Initially in Dallas, Texas from 1987 to 1990, I worked Counterterrorism and Counterintelligence investigative matters. In 1990, I moved to the Fort Worth Resident Agency and worked Violent Crimes for four years. During my time in Dallas, I was also on the SWAT team.  In 1994, I competed for and was selected as an operator on the FBI’s Hostage Rescue Team (HRT), the U.S. Government’s non-Department of Defense full-time counterterrorist tactical unit, located in Quantico, Virginia. For my last year at HRT, I was the team’s liaison to the Crisis (Hostage) Negotiations Unit (CNU). In 2001, just prior to 9/11, I transferred to Portland, Oregon, where I worked Counterterrorism matters and was one of the leaders of the SWAT team. During January through March of 2004, I returned temporarily to HRT and deployed for a special operations tour in Iraq working closely with the U.S. military’s Joint Special Operations Command (JSOC). At the end of March 2008, I retired from the FBI.   I am very proud to have served 8 years as an Infantry Officer in the United States Marine Corps (USMC) before I entered the FBI. In 1977, I graduated from the University of Washington in Seattle with a Bachelor of Arts in Business.  

Experience and Professionalism: 21 Years in the FBI and 9 years in the private sector


  I am dedicated to providing only the highest quality investigative and security consultation services to my clients with an emphasis on confidentiality and discretion. My philosophy is that problem solving and creative thinking can lead to success in our complex and ever-changing business world.   I am honored to work with an outstanding Pacific Northwest group of professional associates with a wealth of prior federal, state, and local law enforcement experience. In addition to my local professional associates, I am very proud to have a very significant network of law enforcement contacts nationwide. Through this expansive network, I am able to selectively and discreetly expand my sphere of investigative capabilities, when appropriate. We will formulate the right group with the suitable experience to successfully fulfill your customized business requirements, needs, and desires.   Additionally, I also have close connections with former intelligence community and foreign law enforcement associates which provide the flexibility to address international solutions as well as domestic. This makes Adler Group a one-stop shopping place for your investigative requests.   Most of my clients have utilized my services on many occasions. This is a fact about which I feel very grateful and privileged. I sincerely look forward to earning your business loyalty as well.