SALT LAKE CITY —  Just the threat of a jolt stopped a man in his tracks. A Salt Lake City police officer couldn't catch up to a 32-year-old man until he yelled, "Taser, Taser, Taser."

Police said the suspect suddenly threw himself on the ground and surrendered Wednesday.

The pursuit began when curious detectives watching a house noticed the man coming from another house. His parole officer was working on an arrest warrant at the time.

Tasers use compressed nitrogen to fire two barbed darts that immobilize people with a 50,000-volt shock.

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