What action is required to conduct a confirmatory breath test?
If a rail safety worker has a positive breath test result, the testing officer should wait 10-20 minutes (in accordance with the manufacturer’s instructions on the device) and then conduct another breath test. If the result is still positive, a confirmatory breath analysis must be performed. Breath analyses may be conducted by a testing officer or a police officer, but they are usually conducted by a police officer at a police station, because the cost of the equipment is prohibitive for most rail transport operators.