TOWN OF BUFFALO, Wis. (WKBT) -

One man is in Buffalo County Jail after admitting to a Sheriff's Deputy that he smoked meth before driving a group of Amish passengers to Iowa.

The Buffalo County Sheriff's Department says 36-year-old Trenton Alan Anderson was driving a passenger van carrying 16 people from an Amish community to Cresco, Iowa when the van was pulled over for not having a functioning headlight.

Once the van was pulled over, the Deputy determined that Anderson may be impaired and contacted the K9 unit for assistance. The K9 detected the presence of a controlled substance in the van, and after a search, a baggy of methamphetamine and three meth pipes were found in Anderson's backpack.

After a records check, Deputies discovered that Anderson had four prior OWI convictions and did not have a valid driver's license.

Anderson is charged with possession of methamphetamine, possession of drug paraphernalia, operating with a restricted controlled substance and operating without a valid driver's license.