EVANSTON, Ill. – A group of high school student sleuths recently busted two school security officers stealing from lockers after setting up a hidden camera sting operation.

Evanston Township High School sophomore Richard Bahmandeji told ABC 7 that cash was missing from his wallet inside his gym locker last week, so he set his iPhone up in his locker to record and it captured a school staff member rummaging through his stuff.

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“So that prompted me and a couple of other students to start filing and that’s when we got two different safety officers snooping in our lockers,” he said.

ETHS junior Noah McKay told the Chicago Tribune students posted a video to Facebook showing a male school staffer reach into a locker and allegedly snatch cash, and it created a frenzy. The next day, students held a protest to demand action from school officials, who threatened to take away prom and punished students to quell the disturbance.

“Me and my friend were pretty upset (over the video) and we stayed on the phone until 3 a.m. last night trying to figure out what to do, so we made a flier – a picture of the guy in the video taking stuff,” McKay said.

Another student who helped McKay organize the protest, junior Malachi Clark, was suspended for a day after about 100 students gathered to demand that school officials fire the staff member in the video.

“They said they were suspending me for distribution of harassing materials – something along those lines – because of the flier I created and distributed with my friends,” Clark told the Tribune. “I also got in trouble for cyber bullying because of a lack of an indictment (against the staff member in the video).”

Meanwhile, district officials claim they are still attempting to track down the students involved in recording the footage to confirm the video is authentic, according to a prepared statement.

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“We are investigating the matter thoroughly with the Evanston Police Department,” assistant superintendent Marcus Campbell said in the statement.

A letter sent to parents said “ETHS is taking these allegations very seriously and we understand the concerns of students and families as we continue to gather information.

McKay and Clark told the Tribune the locker room thefts have been a problem for years.

“I know probably around 10 go 15 people who have had money or other items taken from their lockers that were locked … it’s been freshman year to junior year, it’s been a wide array of occurrences that’s been going on for awhile,” Clark said.

“They’ll lock their lockers and they’ll have $20 or $40 missing,” McKay added. “People have been complaining and reporting their stuff stolen and really the security officers will say, ‘did you lock your locker’ or this or that, or just tell us they’ll do anything they can to get our stuff back, but that hasn’t happened.”

Bahmandeji said he never suspected that the culprits worked at the school.

“I was just surprised it was the safety officers who did it,” He told ABC 7.

“I just thought it was some kids who had my lock combination,” Bahmandeji said. “I got a new lock and it was still happening.”

Evanston Police Cmdr. Joe Dugan said the theft video appears authentic, but investigators are still confirming that it’s real. He said he was unaware of the locker theft problem.

Investigators are also hoping to track down more students who were targeted in the thefts.

“We’re talking about a criminal investigation,” Dugan said. “We need victims and we need to try to cultivate victims through past reports. The people whose lockers were affected need to come forward and make out a report. Maybe they did make out a report (in the past) but didn’t indicate there was a video of it … so that’s why we are tracking down older reports.”