The Chula Vista Police Department will set up a DUI and license checkpoint somewhere in the South Bay city on Friday night.
Officers will be stopping cars from 6:30 p.m. to midnight to check for alcohol or marijuana impairment as well as proper licensing.
The department said the checkpoint location would be chosen based on past drunk-driving crashes.
Checkpoints are often announced in advance because of the deterrent effect on people who might drink or smoke to excess and then get behind the wheel.
“Impaired drivers put others on the road at significant risk,” said Officer Brian Carter. “Any prevention measures that reduce the number of impaired drivers on our roads significantly improve traffic safety.”
Drivers charged with a first-time DUI face an average of $13,500 in fines and penalties, as well as a suspended license.
