BOULDER, Colo. -- Boulder police say they used a Taser on a man after he refused to comply with their orders when they confronted him about rolling around naked on the grass.

Police said Christopher Dornfield is suspected of taking LSD before being spotted naked and screaming in the middle of a street Wednesday night. Police said they used a Taser on Dornfield because he was combative and did not follow their orders.

He was shocked twice more after he tried to get back on his feet and advanced toward officers, according to police.

Dornfield was taken to the Boulder Community Hospital and was later released.

Police spokeswoman Sarah Huntley said the Boulder County Drug Task Force is investigating but that Dornfield has not been arrested or charged with a crime.