As a Security Guard Supervisor, you will need to master following:

• coordinate security
• ensure public safety and security
• execute inspection walkway
• maintain facility security systems
• supervise security at manned access gates
• write security reports

More generally, a security guard supervisor is also versed in:

• coordinate patrols
• criminal law
• detain offenders
• ensure law application
• liaise with security authorities
• manage security equipment
• manage the security team
• monitor surveillance equipment
• practice vigilance
• security threats
• supervise staff
• surveillance methods
• undertake inspections

It also helps to know the following:

• document security incidents in the store
• ensure hotel security
• legal requirements related to ammunition
• monitor parking areas to maintain security
• security in commercial buildings
• security in industrial buildings
• train security officers
• check methods
• check official documents
• deal with aggressive behaviour
• fire safety regulations
• handle surveillance equipment
• illegal substances
• legal use-of-force
• manage major incidents
• operate radio equipment
• patrol areas
• perform security checks
• provide door security
• provide first aid
• restrain individuals