Mark J. Lang, MCJ, CPP, CHPA, is the Owner and Principal Consultant of Investigations HQ, LLC, a consulting and expert testimony firm. With decades of experience in law enforcement command staff and past executive healthcare security roles. Mr. Lang has consulted in negligent security, premises liability, hospital security, crime foreseeability, law enforcement practices, standards, and procedures.

Mr. Lang retired as a decorated Special Investigations Captain from the Orange County Sheriff's Office (Florida), which at the time had over 1,500 sworn personnel and a population of over 1 million. Captain Lang supervised and managed numerous specialized units, including Undercover Narcotics, Fugitive Apprehension, Criminal Intelligence, Vice, Pharmaceutical Investigations, and various federal and local task force operations. His extensive law enforcement career included leadership assignments in patrol, tactical operations, criminal investigations, and special operations.

Following his law enforcement career, Mr. Lang became the first Executive Senior Director of Security Operations for Orlando Health, one of the nation's largest healthcare systems with 10 hospitals, over 3000 licensed beds, and a Trauma Center. In this role, he led enterprise-wide security operations, workplace violence prevention programs, emergency management coordination, behavioral health security, and regulatory compliance, among other areas. He is widely recognized for his expertise in hospital security management and healthcare workplace violence prevention.

Mr. Lang holds a Master of Criminal Justice degree from Boston University and a Bachelor of Arts in Criminal Justice Administration from Columbia College. He is board-certified as a Certified Protection Professional (CPP) through ASIS International and a Certified Healthcare Protection Administrator (CHPA) through the International Association for Healthcare Security and Safety (IAHSS), two of the most respected certifications in the security profession. He is also a licensed Florida Private Investigator and Agency Owner.

Mr. Lang has consulted on dozens of cases involving negligent security, premises liability, healthcare security, law enforcement practices, use of force, workplace violence, patient elopement, security operations, and police standards and procedures. He has provided expert analysis, case review, and report preparation throughout the United States.

In addition to his consulting, Mr. Lang has served as a post-secondary instructor at Valencia College and the University of Central Florida, teaching criminal justice, security management, investigations, ethics, criminology, and law enforcement operations. He is a published author in the Journal of Healthcare Protection Management and has appeared as a security and law enforcement expert on numerous television broadcasts.

Mr. Lang is available nationwide for case review, consultation, expert reports, deposition testimony, trial testimony, and security assessments. Please review the CV on file.