A warning from Anonymous
Anonymous has also expressed outrage over the Canada case and said it might release the names of teens linked to the alleged rape in an effort to force authorities to pursue prosecution.
The group told Nova Scotia Justice Minister Ross Landry that "justice is in your hands and supports the legal machinery to move forward with charges."
"Better act fast," Anonymous warned Canadian law enforcement in a statement.
"We do not approve of vigilante justice as the media claims. That would mean we approve of violent actions against these rapists at the hands of an unruly mob," the group said. "What we want is justice. And that's your job. So do it."
Jason Barnes, partner of the teen's mother, said the family does not "support the publishing of the names" in the case, which has shocked Canada.
"We are not looking for some kind of vigilante justice. We just want justice," Barnes said.
Anonymous claimed it took only a few hours to identify the boys who assaulted her.
"This wasn't some high-tech operation that involved extracting private messages from someone's Facebook account. Dozens of e-mails were sent to us by kids and adults alike, most of whom had personal relationships with the rapists. Many recalled confessions made by these boys blatantly in public where they detailed the rape of an inebriated 15-year-old girl," the group said.
"These sad little boys had no fear whatsoever about admitting publicly their crimes and even spreading photographic evidence of it. Why were they unafraid? They believed no one was ever going to do anything to stop them and they were right," the group said.
Every officer that signed off on the "no evidence" conclusion, Anonymous said, "should be guarding the entrance to a petting zoo for the remainder of their careers."