A private security officer is a person who has completed SIA training or courses of training mandated by the Security Industry Authority. Security officers are employed by private security companies or agency to protect a their customers varying interests. Security staff provide a uniformed deterrent to crime and prevent and damage to property. In2 Security Courses will prepare you for employment in the security field by educating you regarding the important knowledge, skills and training needed by the industry. Our SIA training program includes free course materials, handouts and complementary assistance with completion of your SIA licence application.