A Lock man has recorded a blood alcohol reading of 0.087 while driving in Port Lincoln over the weekend.
The 25-year-old was stopped in a vehicle at Oxford Terrace, Port Lincoln around 10.30pm Friday night for a mobile driver test.
He was reported for drink driving, resulting in a six month instant loss of licence.
His vehicle was impounded for 28 days.
The man will be summonsed to appear in court at a later date.