The Mahoning OVI Task Force announced that it will conduct two OVI sobriety checkpoints Friday night in Boardman.
The first checkpoint will be on South Avenue near Midlothian Boulevard and will run from 10 p.m. to 12 a.m.
The second checkpoint will be on U.S. Route 224 at Marinthana and will run from 12:30 a.m. to 3 a.m.
Area law enforcement agencies are also taking part in expanded road patrols this weekend throughout Mahoning County.
In 1990, the U.S. Supreme Court ruled that holding sobriety checkpoints without first notifying drivers would violate the Constitution's provision barring illegal search and seizure.
However, in their ruling, the justices did not spell out what they considered to be adequate notification.
That same year, the National Highway Traffic Safety Administration published recommended procedures for OVI checkpoints, including notifying the media of the planned roadblocks.