Police detected 10 people drug driving in the Port Lincoln area between April 15 and April 24.
Just before 4pm on April 15, police stopped a 58-year-old woman driving on Coronation Drive for a roadside alcohol and drug test and she allegedly returned a positive result to methamphetamine.
A 47-year-old woman driving on Tasman Terrace was stopped and drug tested by police the following day, allegedly testing positive to methamphetamine.
A 56-year-old Port Lincoln woman allegedly returned a positive result to cannabis after being stopped on Martindale Crescent on April 17. She may also be issued with an expiation notice for aggravated drug driving as she had a passenger in the vehicle under the age of 16.
Later that evening, police stopped a Whyalla man, 38, on Mortlock Terrace where he was drug tested and allegedly tested positive to methamphetamine.
On April 18, police drug tested a 29-year-old Port Lincoln man on Proper Bay Road and he allegedly returned a positive result to cannabis. The driver was issued an expiation notice after cannabis and consumption equipment were found in his vehicle.
At 3.30pm on April 19, police arrested a 35-year-old Port Lincoln man for traffic offences on Hecla Street. When drug tested, he also allegedly tested positive to methamphetamine.
A 29-year-old Port Lincoln man was stopped on Sellen Avenue at about 2.30pm on April 22 and he allegedly returned a positive result to methamphetamine.
On the same day, a 29-year-old Port Lincoln woman also allegedly returned a positive result to methamphetamine after being stopped on Mortlock Terrace.
Another Port Lincoln woman, 37, allegedly returned a positive result to methamphetamine and cannabis after she was stopped on Kuranda Street just before 12pm on April 23.
The next day police stopped a 39-year-old man on Follett Street at about 10.30am and drug tested him. He allegedly returned a positive result to cannabis.
Pending forensic analysis, the drivers may face drug driving charges.