Derk is a Nevada licensed, independent security consultant specializing in gaming surveillance and security. Derk has served as a senior casino executive in surveillance, security, loss prevention and compliance for over thirty years.
He is a respected author, instructor, and speaker, specializing in the fields of surveillance training and methodology, gaming protection, loss prevention, and the detection of internal and external theft and fraud. He co-authored "Casino Security and Gaming Surveillance" with Alan W. Zajic, CPP, CSP.
His technical articles have appeared in dozens of professional journals, including Security Management magazine, which is published by ASIS International. ASIS International is the largest organization for security professionals with more than 36,000 members worldwide.
Derk presently operates DJ Boss Associates, a consulting firm specializing in gaming security, surveillance, game protection and loss prevention.