Shawn M. Prater, 24, at large, was taken into custody on a warrant for assault and charged with possession of marijuana around 6:25 p.m. Thursday.
He was a passenger in a car that made an improper turn from Sandusky Avenue onto southbound Detroit Street, officers of the Bellefontaine Police Department report.
When asked about contraband, Prater admitted to having marijuana and a pipe for smoking it.
He was lodged in the Logan County Jail while the driver was given a warning for the driving violation.