[custom_adv] SWAT units are often equipped with specialized firearms including submachine guns, assault rifles, breaching shotguns, sniper rifles, riot control agents, and stun grenades. In addition, they may use specialized equipment including heavy body armor, ballistic shields, entry tools, armored vehicles, night vision devices, and motion detectors for covertly determining the positions of hostages or hostage takers, inside enclosed structures. [custom_adv] SWAT (Special Weapons and Tactics) officers are members of highly trained paramilitary units that tackle situations beyond the capability of conventional police forces. [custom_adv] SWAT teams are called in when an incident presents significant risk to law enforcement officers or the public. These elite professionals use their advanced training in weapons, teamwork and strategy to resolve crises. [custom_adv] While all SWAT officers are expert marksmen with in-depth training in close combat, most play a specialized role within the team. Some serve as negotiators or medics while others are experts in handling assault vehicles or weapons. [custom_adv] Each team includes several tactical officers who coordinate and carry out assaults on barricaded positions and apprehend armed suspects. [custom_adv] When not responding to crises, SWAT officers perform more routine duties. Many spend a majority of their time in conventional policing activities such as patrol and traffic enforcement. In some areas, they use their specialized tactical knowledge to conduct crime suppression exercises that ferret out dangerous offenders. [custom_adv] Members are chosen from the ranks of experienced police officers based on their superior fitness, marksmanship and service record. They take great pride in protecting the public and their fellow law enforcement officers in life-and-death situations that put their years of training and experience to the test. [custom_adv] Following graduation from the academy, most police recruits complete a period of field training and probation before becoming eligible for solo assignments and increased responsibilities. Officers must generally have at least three years of law enforcement experience before applying for promotion to a SWAT unit. [custom_adv] Aspiring SWAT officers can improve their chances by attending voluntary training programs in defensive tactics, legal education and marksmanship through the local police academy. Because SWAT is considered an elite posting, candidates must also demonstrate superior marksmanship and fitness and maintain an excellent service record.