41-year-old Madison man was arrested Friday after law enforcement officials found an unnamed chemical in a campus research lab.
Officers from the UW-Madison Police Department, along with investigators from the Madison Fire Department’s Hazardous Incident Team, responded to the lab for a report of an unknown odor coming from items in an office.
Evidence was collected and later tested positive for the presence of a chemical, UW-Madison Police spokesperson Marc Lovicott said without naming the chemical.