A drug sweep Wednesday morning at a South Carolina school has some parents and students questioning police tactics.

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Police Draw Guns In Charlotte School

Surveillance video from Stratford High School in Goose Creek shows 14 officers, some with guns drawn, ordering students to lie the ground as police searched for marijuana. Students who didn't comply with the orders quickly enough were reportedly handcuffed.

Police didn't find any criminals in the armed sweep, but they say search dogs smelled drugs on a dozen backpacks.

The school's principal defended the dramatic sweep.

"We received reports from staff members and students that there was a lot of drug activity," said George McCrackin. "Recently we busted a student for having over 300-plus prescription pills. The volume and the amount of marijuana coming into the school is unacceptable."

The parents of some students who were subjected to the sweep disagree.

"I was just upset knowing they had guns put to their head and a canine was barking at them and about to bite somebody," said Latonia Simmons, the parent of one student. "It was awful."