Over the weekend Murray Mallee Police reported three people on three separate occasions all for having illicit substances in their system.
A 37-year-old woman from Mannum, a 24-year-old man from Renmark and a 23-year-old woman from Semaphore all tested positive to drugs while driving.
They were all issued with three-month losses of licence and will be summoned to appear in court pending forensic analysis.
A 39-year-old woman from Cobdogla was also reported for failing to comply with directions to submit to a drug test.
She was issued with a six-month loss of licence.
On Saturday 19 July, a 63-year-old Monash man was stopped on Old Sturt Highway, Berri and recorded a blood alcohol reading of 0.149.
He was issued with a six-month loss of licence and had his vehicle impounded for 28 days.
He will be summonsed to appear in court.
Image: https://pixabay.com/photos/police-cop-emergency-symbol-law-4566193/