The shenanigans were videotaped and posted in recent weeks on YouTube, under the title To Troll a Predator.
One video features what the boys describe as a 44-year-old male who was seeking to perform oral sex on a 15-year-old girl. The video shows screen grabs of the online chat, dated Nov. 5, and the agreement to meet at a Tim Hortons.
The video then cuts to footage of a man dressed as Batman, speaking in a Cookie Monster-esque voice, claiming to be with B.C.'s "Chilliwack Police Department."
"We have caught you talking to a 15-year-old girl online," the caped crusader says to the nervous-sounding man.
Another video shows a screen grab of a man asking what he believes to be an underage girl (actually the teen boys): "But you're '18' right?"
The boys reply: "i guess we could just say im '18.' "
That video then cuts to the man standing by a playground as "Batman" walks briskly toward him.
"You're here for the underaged girl," Batman growled.
"No," the man replied.
"I know who you are."
Cpl. Tammy Hollingsworth, spokeswoman for the Upper Fraser Valley RCMP, told media Tuesday police are investigating the boys, two of whom are reported to be 17 years old and one of whom is reported to be 18.
Hollingsworth noted the possible danger to the boys for embarrassing the men in public settings.
There are believed to be four videos in all, with a man dressed as the Flash also appearing in one.
The videos have since been pulled from YouTube.
A status update from Monday on the To Troll a Predator Facebook page said the future of the channel is unknown.
"Due to police intervention we will be discontinuing the To Troll a Predator series," it stated. "I hope those who viewed the videos shared many laughs with us while we could. Hope you understand."
The YouTube videos are modelled after To Catch a Predator, an American television series that teamed with online watchdog group Perverted Justice and eventually law enforcement officials to set up and execute stings on sexual predators.
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