The two-day competition, which started with an opening ceremony this morning, includes about 30 teams that will negotiate seven different courses.
The courses test physical fitness, tactics, proficiency with weapons and teamwork, according to the Santa Clara County Sheriff's Office, which is hosting the event..
In addition to building camaraderie between the various SWAT teams, the competition allows the law enforcement agencies to share techniques and improve their skills, according to the sheriff's office..
The event, which is taking place at the sheriff's range in San Jose, is closed to the public because of safety and liability concerns.
