Bell 412 Helicopter (callsign PolAir 53) which features an array of thermal and imagine sensors, aircraft is marked in a SAPOL livery. SAPOL also use a Pilatus PC-12 aircraft which is used to convey Police and prisoners across the state. Training and education Recruit training is conducted at the SAPOL Police Academy located adjacent to the old barracks adjacent to Fort Largs in the north-western Adelaide suburb of Taperoo. Cadets undergo a 52-week course, called the "Constable Development Program" (CDP). The CDP is broken down into five phases, which includes training at the Police Academy and field experience at metropolitan LSAs. Police cadets learn law, about investigations and police procedures. During recruit training, non-officers (police staff and volunteers) assist with various duties, such as cadet assessment, role playing and general administration. Cadets also undertake operational safety training, including self-defence and the use of firearms. Practical role-playing and assessments are part of the course. Training with police dogs and police horses is offered at the Thebarton Police Barracks. Earlier, training was being held at the older Academy located next to the present one. Graduation and aftermath for new officers Cadets graduate with the rank of probationary constable and are subject to a 15-month period of on-the-job training. Probationary Constables are required to work with a Field Tutor for the first 6 months of the probationary period whilst they complete a Personal Learning Portfolio. Probationary Constables also undertake a range of duties to enhance their learning, including traffic, prisoner management, and general duties. For the following 6 months, probationary constables continue to collect evidence of their workplace competency before attending the Probationary Constable Assessment Workshop to determine whether they are suitable to progress to the rank of Constable. Upon completion of the probationary period, officers receive a Diploma of Public Safety (Policing) and are appointed to the rank of Constable. Training is ongoing and further courses are available for officers to attend, should they wish to progress their policing career further. SAPOL Protective Security Officers also undergo training at this location. The duration of this training course is only 12 weeks. Radio communications SAPOL refers to the communications operation as "VKA". At 0400 hours (4am) on Tuesday 10 December 2002, SAPOL officially switched from standard 64 UHF channels to the SA Government Radio Network (SAGRN). This utilised digital encrypted radio transmissions meaning that scanners could not listen to police communications. While at