This course is a continuation of the four previous classes (Basic, Advanced, Master I & Master II). NIAinstructors will be addressing locking devices and subjects which have been encountered during pastclasses with emphasis on changes which have been made to attempt to defeat covert and surreptitiousentry. New and innovative ways of bypassing and circumventing many devices will be taught as well as“hands on” training to defeat these mechanisms. This course will cover new material and also refreshthe covert entry specialist’s skills. Students should bring tools that were issued to them in the priortraining.