Houston vice investigators will watch a video taken at a Madison High School-sponsored dance to search for criminal activity after media reports that DVD copies sold on campus depicted students engaged in sexual acts.

KHOU (Channel 11) reported Monday that the video showed students having sex during the dance, but a Houston Independent School District officer has told police that the tape only showed lewd dancing by fully clothed students.

"The HISD officer told us all the persons on the tape are clothed and he didn’t see any nudity, so we have to determine if any laws were broken," said Houston Police Department spokesman John Cannon.

Specifically, the officer reported seeing various couples engaged in lewd dancing and one couple simulating intercourse, Cannon said.

The HISD officer also told Houston police that all of the students were at least 17, Cannon said, though some may not have attended Madison.

HISD spokesman Terry Abbott said Madison Principal Gloria Legington and a teacher who helped organize the Feb. 11 Valentine’s dance were reassigned after a copy of the video was found on the campus this spring.

HISD did not release the educator’s name, but Abbott said the career and technology education teacher helped sponsor the dance at the Crowne Plaza Hotel downtown.

Two Madison students who attended the dance told the Chronicle on Tuesday that there might have been some "dirty dancing" taking place, but it stopped short of sexual activity.

Ashley Thompson, 18, said she didn’t even know about the video until Tuesday.

Thompson, a senior, thought the school district was harsh in reassigning Legington.

"I think she should still be here today," Thompson said.

Abbott said the reassignment was a routine decision considering the allegations about the video’s contents.

"We have not characterized the contents of tape other than to say it contained potentially inappropriate behavior," he said. "It’s appropriate to make a reassignment pending the outcome of an investigation.

"The investigation will show what happened, and will help us decide what to do next."

The investigation by the district’s office of inspector general is ongoing, Abbott added.