Security guards can be directly employed by the [[company]] whose premises they protect, or can work for specialist security companies who hire out their services. They may also be either licensed by their state to carry a [[firearm]] while on duty, or they may patrol unarmed. | Security guards can be directly employed by the [[company]] whose premises they protect, or can work for specialist security companies who hire out their services. They may also be either licensed by their state to carry a [[firearm]] while on duty, or they may patrol unarmed. |