Security services, namely, armed escort and security personnel for executive protection; Patrol services, namely, security guarding for facilities comprised of unarmed and armed guard patrolling services, special operations task force, namely, providing physical security services by means of unarmed and armed guards with prior military experience; Monitoring burglar and security alarms with armed Patrol response; Providing security services for buildings by means of controlling of physical building environmental access and security system for physical security purposes by means of monitoring and providing physical access remotely; Detective investigations; Undercover Detective investigations; preemployment background investigation services; Surveillance services in the nature of photo and video surveillance services; Drug screening for employment purposes; Providing information concerning safety risk in the back country and/or avalanche terrain; expert witness services in legal matters in the field of security