Billings police searched several businesses Tuesday morning, finding what they believe is evidence of selling synthetic drugs, commonly known as "spice."
Ball Adult Books and Video, 15 S. 26th St., and Headies, 1802 First Ave. N., were searched as part of an ongoing investigation, according to Billings Police Department Lt. Kevin Iffland.
No arrests were made during the searches.
"The search warrants resulted in the seizure of extensive evidence supporting the sale of these substances," he said.
Iffland did not elaborate on what evidence was seized.
The warrants were in response to the Billings area seeing an increased level of imitation dangerous drugs appearing at the street level, he said.
The class of substances, intentionally created to be consumed as an alternative to illegal drugs, are generically referred to as "spice" or "bath salts" by law enforcement, he said.
"There's so many derivatives out there these days," Iffland said.
He pointed out that Montana law says any substance represented to be a dangerous drug or to simulate the effect of a dangerous drug is illegal.
The investigation is ongoing, he said, and could be expanded to include other local businesses that are suspected of selling the illegal substances.