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WELCOME TO THE POLICE DYNAMICS INSTITUTE


For over 25 years, the Police Dynamics Institute (PDI) has been committed to enhancing the effectiveness and integrity of law enforcement agencies worldwide. Through comprehensive, character-driven training and consulting services, we empower law enforcement professionals to achieve excellence in their field while our expert witness services assist clients in procuring justice and ensuring accountability.


Our Founder and CEO

Sheriff Ray Nash (ret.), with over 40 years of professional experience in law enforcement leadership, training and education, and human resource development, founded PDI to share his wealth of knowledge and expertise. Sheriff Nash has personally presented Police Dynamics training to over 20,000 law enforcement, military, and government leaders across the United States and abroad, making a significant impact on the global law enforcement community.


Our Services

At PDI, we offer a range of specialized services to support the justice sector in protecting the public, pursuing justice, and serving with integrity:


Training and Consulting: Our specialized training programs emphasize character and leadership skills, fostering a culture of excellence and accountability within law enforcement agencies.


Case Review and Expert Witness Services: Sheriff Nash, in his role as an expert witness, has assisted dozens of clients in procuring justice and accountability, offering his expertise in police training, procedures, use of force, and law enforcement administration.


Polygraph Services: We offer professional polygraph services for attorneys, law enforcement agencies, and sex offender monitoring programs, ensuring the highest standards of accuracy and reliability.


Institute of Police Polygraphy: Through our Institute, we provide advanced and specialized polygraph training, equipping professionals with the skills needed to conduct effective and ethical polygraph examinations.


Forensic Interviewing Certification: Our Inductive Interview System offers certification in forensic interviewing techniques, designed to enhance investigative effectiveness and accuracy.


Defensive Tactics Training: Our Aggression Control Tactics program delivers cutting-edge defensive tactics training, empowering law enforcement officers to manage confrontations with confidence and control.


Join the thousands of justice professionals who have benefited from our training and consulting services. Explore our website to learn more about how the Police Dynamics Institute can support your commitment to operational excellence and professional growth through innovative training and expert services.


Our education programs are recognized and approved by the National Command and Staff Collegethe National Sheriffs' Associationand the Justice Clearinghouse.

Call Today: (843) 200-0800