HOWELL - Officials suspended a Howell teacher with pay pending an investigation into his alleged drug use.

A controversial activist group, Project Veritas, secretly videotaped him appearing to offer cocaine to other people.

Robert Klein, a physical education and health teacher at Howell Middle School South, appears to be overheard in the video offering cocaine to two people inside his hotel room during the NJEA convention in Atlantic City last fall.

"He made some concerning statements," says Howell's chief of police. "Obviously there was some talk about illegal drug use, which we are looking into."

Former students say Klein often preached about getting natural highs from sports instead of using drugs.

The two people who shot the video are undercover members of an anti-teachers union group called Project Veritas. James O'Keefe, the group’s founder, is also seen in the school under a fictitious name, presenting Klein with a fake anti-drug advocate award in front of his class. Parents want to know how O'Keefe was able to trick school officials.

O'Keefe tells News 12 New Jersey that he walked in through the school's front door and never had to show any identification.

"People are trying to turn it around on me," O'Keefe says. "We performed a public service to the school. If we didn't do this investigation, he'd still be teaching."

Police say that O'Keefe did actually make an appointment at the school, although under a fake name.

"There was an interview set up," the police chief says. "He did have an appointment. He did come in, present his ID at the door. Once he got into the school that's when he presented a fictitious name."

The police chief says O'Keefe could be charged with trespassing and other offenses.

O'Keefe's group is more widely known for controversial, undercover videos on Planned Parenthood and ACORN.