Scott Irish was given five minutes to get lost yesterday.

Massachusetts State Police Trooper Gene Lawrence, flanked by two other officers, then tracked him on foot, through the low brush and trees just inside the Cochituate State Park perimeter.

An audio doppler told troopers whether they were headed in the right direction, the sound getting louder or softer as the sweeping antenna faced the right or wrong way, respectively.

Irish, a State Police trooper who played the role of a lost person in the park for the purpose of training, was eventually found, thanks to the new technology called Safety Net by LoJack. 

This same radio frequency technology will soon aid the Massachusetts State Police in its search efforts, according to commanding officer Lt. Robert Leverone. 

Starting in July, the State Police special emergency response team will use Safety Net technology that allows trained troopers to use unique frequencies to locate a missing person wearing a personal locator bracelet. The technology is designed for cognitively impaired persons suffering from disorders such as autism and Alzheimer’s.

Leverone touted the new technology at yesterday's training exercise at Lake Cochituate, saying it allows the police rescue teams to “utilize far fewer resources far more efficiently."

The bracelet, said Scott Martin, law enforcement director of Safety Net Division, is tracked via a handheld or cruiser-attached device, and can be tracked up to a few miles away. An additional device goes in helicopters and can be used up to 7 miles away.