( CNN ) -- After days of insisting no formal complaints had been made about a teen gang calling themselves the `` Roast Busters , '' New Zealand police now admit a 13-year-old girl made a rape allegation two years ago . The girl , now 15 , told 3 News on Wednesday that police officers asked her to re-enact the alleged rape using dolls during a videotaped interview in 2011 . `` It was traumatizing , '' she said . The teenager repeated claims she said she 'd made to police that she 'd been raped by three boys from the `` Roast Busters , '' a gang of teenagers whose online boasts about raping drunk underage girls caused outrage when they were exposed by local media this week . For days , police said they were powerless to arrest the boys because none of their alleged victims had filed a formal statement . However , on Wednesday , they admitted the girl had made a formal complaint just weeks after the alleged attack . `` An investigation was launched and the complaint was thoroughly investigated , '' police said . `` Whilst this was a distressing situation for the girl and her family , police determined that there was not sufficient evidence to bring a prosecution . '' WaitematÃ¤ Police District Commander Superintendent Bill Searle told 3 News on Thursday the decision not to prosecute the girl 's alleged attackers would be reviewed in coming days . He also said he 'd be investigating why he was n't told a formal complaint existed , adding there was a `` little bit of disagreement '' over what constituted a complaint . `` I was briefed there was no formal complaint . As far as I 'm concerned what the lady said was a formal complaint . I 'd like to apologize to her for any stress that this would have caused , '' he told 3 News . Opinion : Do n't blame women 's drinking for rape . He said he 'd also be investigating the girl 's claims she was asked a `` lot of questions '' about what she was wearing at the time of the attack . She said officers asked `` why did you go out in this skirt ? '' `` It 's not part of our policy , it 's not part of our general practice to ask these sorts of questions , '' Searle said . The country 's police minister Anne Tolley has asked the Independent Police Conduct Authority ( IPCA ) to investigate the matter , particularly officers ' questioning of the then 13-year-old alleged rape victim . `` Parents of young girls need to have confidence that complaints to police about sexual assault are investigated thoroughly and appropriately , '' she said in a statement . Referring to the apparent confusion over whether a formal complaint had ever been filed , she said she was `` disappointed '' the full facts had not been divulged to her or the country 's police commissioner . `` I do n't expect to be told finer details of police operations . Police must remain independent of politicians . But I do expect police to be talking to each other , '' she said . In a statement on Thursday , Police Commissioner Peter Marshall welcomed the independent review and said Waitemata District police remained `` absolutely committed '' to pursuing the matter . `` Prosecuting these matters before the court requires a very high threshold , and we only get one opportunity to get it right . This means it absolutely critical for victims that we have the strongest case possible , backed by the appropriate evidence before we can proceed . '' Earlier this week , Searle told CNN they had been actively monitoring the group since the first alleged offense was committed in 2011 . He said police interviewed two boys identified as the group 's ringleaders again on Monday , but they had n't admitted to anything that constitutes a criminal offense . `` The online claims themselves are not enough to warrant a prosecution , '' Searle said . `` They might be morally inappropriate and unacceptable to us but we have to deal with evidence that would be admissible in a court of law and we have n't got to that stage yet . '' Searle declined to confirm how many boys were involved in `` Roast Busters , '' but said the two ringleaders led a `` core group , '' as well as `` an associated group . '' The boys were attending at least two different schools at the time the alleged offenses were committed but all have since graduated , he said . It 's believed they 're now around 17 to 18 years old . In a video posted to YouTube , two boys made no attempt to hide their faces as they told the camera : `` We do n't choose the roast , the roast chooses us ... They know what we 're like ; they know what they 're in for . '' They boasted of their exploits on a number of social media sites , including Ask.fm and Twitter , as well as a Facebook page which has since been shut down . Searle said on Tuesday the boys had recently received death threats but had not requested police protection .
New Zealand police backtrack on earlier claims that the man was a “known terrorist” who had been in Syria for several months. '' They 've confirmed a 13-year-old girl made a video statement two years ago alleging she 'd been raped . Officers decided at the time there was not enough evidence to file charges against the boys . Alleged ringleaders have caused outrage with online boasts about raping drunk underage girls .