Whyalla Police have detected a driver almost five times over the legal limit.
Police stopped a vehicle that was straddling lanes on Jenkins Avenue, veering across in front of another vehicle nearly causing a collision.
The 29-year-old Eyre Peninsula woman submitted to a breath test where she returned an alleged positive blood alcohol reading of 0.234.
Checks on the woman’s licence showed that she was also driving disqualified.
She was reported for drink driving, issued with a 12-month immediate loss of licence notice and will be summonsed to appear in court at a later date.