Rock Valley Police Department

ROCK VALLEY—A 23-year-old Larchwood man was arrested Sunday, Aug. 4, on a charge of possession of a controlled substance while walking on the recreational trail in Rock Valley.

The arrest of Gerald Evan Michael Vos stemmed from a city employee reporting seeing a man in a purple Minnesota Vikings jersey “walking very poorly” on the city trail, according to the Rock Valley Police Department.

An officer also noticed Vos “walking very unsteady” and asked for his identification.

Vos presented his wallet and inside was a greenish white organic leafy substance. He also had the same substance in a baggy is his pocket.

The officer initially presumed the substance was marijuana, but it was determined to be a psilocybin mushroom.