Criminal Investigation Consultants: 5

Roy G. Taylor is a current Chief of Police with over 40 years of experience in a wide-range of federal, state, local, and private criminal justice positions. He delivers comprehensive and intelligent Law Enforcement and Security Services to federal, state, and local governments, and is authorized to work on private or government properties including parks, any government owned buildings, land, public housing communities, hospitals, schools, or similar areas. 

Dr. Taylor's experience and expertise includes use of force and firearms instruction; recruiting, selection and assignment; employee supervision, evaluation and retention; curriculum development; policies and procedures design and implementation; canine utilization; budgeting; public relations; and emergency management. 

Current Positions:

• Chief of Police Blue Ridge Public Safety (2014)
• President/CEO Signal 88 Security of Charlotte (2012)
• President/CEO Capitol Special Patrol (2012)
• Chief of Police Capitol Special Police (2002)
• LT. Colonel – Provost Marshal, Army National Guard (2000)
• Antiterrorism / Emergency Management Branch Chief DoD (2007)
• Provost Marshal Joint Civil Support Task Force, Joint Chiefs of Staff (2014)

Specific Services:

View Roy Taylor's Expert Witness Profile.

SIMCO specializes in Jail, Prison and Corrections Expert Witness and Consultation Services.  Founder, Joseph Gunja is a Jails, Prisons and Corrections Expert with more than 30 years of experience in the corrections industry.

Mr. Gunja had a distinguished career with the Federal Bureau of Prisons (FBOP) for over 28 years serving as a Correctional Officer, Shift Supervisor, Investigator, Captain, Associate Warden, and Warden at three complex correctional facilities. He also served as Regional Director of the Western Region for over 2 years and was assigned to the FBOP's Headquarters in Washington, DC where he was responsible for authoring national policy and official publications, providing technical expertise to the Assistant Director of Correctional Programs and facility Wardens, Associate Wardens, and Captains. 

Mr. Gunja also served as the Keynote Speaker and Trainer at the FBOP's Management and Specialty Training Center on a monthly basis After retiring from the FBOP in 2007, Mr. Gunja has been providing correctional consultation services. In addition, he has worked for two of the largest private corrections companies, CCA and GEO Group, as Warden at the Northeast Correctional Center in Youngstown, Ohio, and the Great Plains Correctional Facility in Hinton, Oklahoma. 

Consulting Services Include:

View Joseph E. Gunja's Expert Witness Profile.

Dr. Heather Manning, Ph.D., is a Forensic Criminologist and consultant specializing in child protection, abuse prevention, institutional risk assessment, and investigative analysis. As the founder of SAFE – Sentinel Assessments & Forensic Evaluations, she provides consulting services to organizations seeking to strengthen safety practices, mitigate risk, and improve responses to allegations of abuse and exploitation.

Dr. Manning works with law enforcement agencies, nonprofit organizations, educational institutions, and youth-serving organizations to develop proactive systems designed to identify vulnerabilities, prevent abuse, and support effective investigative practices. Her consulting services include institutional risk assessments, policy and procedure development, investigative consultation on sexually based crimes, interview practice guidance, and the development of prevention-focused training programs.

With a background in forensic criminology and extensive experience analyzing cases involving sexual exploitation, violence, and institutional misconduct, Dr. Manning provides expert insight into offender behavior patterns, grooming dynamics, and systemic failures that allow abuse to occur within organizations.

Through SAFE, she assists organizations in building stronger safeguards by integrating evidence-informed training, risk mitigation strategies, and investigative consultation. Her work focuses on helping institutions recognize warning signs earlier, strengthen accountability systems, and create environments that prioritize the protection of children and vulnerable populations.

Dr. Manning is also available for case consultation, program development, training design, and expert analysis in both civil and criminal matters involving sexual abuse, exploitation, and institutional risk.

View Heather Manning's Expert Witness Profile.

Global Forensic Services, LLC (GFS) is a Forensic Consulting, Laboratory and Investigative Firm offering over 37 years of experience and training in a wide range of forensic science and private investigation disciplines.

Larry Stewart has personally examined tens of thousands of individual items of evidence from sources such as state, local, and federal agencies (e.g. Federal Bureau of Investigation, Secret Service, Bureau of Alcohol, Tobacco and Firearms, Central Intelligence Agency, and others), and foreign governments. On several occasions he has examined cases involving international disputes between governments. 

Mr. Stewart has testified as an Expert Witness in state, federal and military courts of law, as well as in foreign court systems to include; Austria, Australia, Canada, Germany, Sri Lanka and Thailand. He has also testified at The Hague in the Netherlands and three times as an expert before the U.S. Congress. 

Areas of Expertise Include:

Archuleta & Associates Investigative Services, a Division of Archuleta & Associates, Inc., has been providing investigative services within various industries since 1982. They are the overwhelming leaders within the CA Central Valley. The clientele of Archuleta & Associates, Inc. consists of every level of business, from both the private and public sector. Due to the wide range of services provided and their 25 years within the industry, they have worked with an extremely diverse and vast clientele base, from the largest of litigation firms to the smallest of personal clients. 

Robert A. Archuleta launched his career as a Private Investigator in 1983, after five years as an officer, investigator and sergeant for the Lodi Police Department, followed by stints as an engineering contractor and a deputy U.S. Marshal. Among his other clientele, Mr. Archuleta has been as an Expert Witness for the Department of Consumer Affairs for the State of California. 

Services Include: