A Weston woman was arrested for driving under the influence, risk of injury to a minor, possession of marijuana, possession of drug paraphernalia, and possession of narcotics on Nod Hill Road in Ridegfield around 7 p.m. Wednesday, July 31.

Ridgefield police said Junyuan Tsai, 36, was found in possession of marijuana and a substance that was “suspected heroin,” according to a police report.

Police said that a caller reported a suspicious vehicle in the area of Nod Hill Road with right side damage.

The car was pulled over and an investigation revealed Tsai was under the influence of “alcohol and/or drugs,” the report said.