"What gives police the right to do this to an innocent teenage girl? Yes teenagers playup and get out of control at parties, we all know this but what gives the cops the right to enforce such violent actions on someone that wasn't doing anything wrong,'' she wrote online.
Counties Manukau Police District Commander, Superintendent John Tims confirmed an investigation was underway.
"The female alleges to have been pushed by police.
"Police were called to the address at around 11.15pm, we were advised that there were individuals intoxicated and passed out on grass verges. One police unit completed a drive-by to carry out an assessment of the party. Whilst doing this they observed around 150 people on Wellington Street and around 50 bottles were thrown at the police patrol car.''
Mr Tims said: "Police officers in the patrol vehicle then called for back up...The officers moved in to the address and tried to disperse the partygoers from the house and also the surrounding areas. No one was arrested as a result of the house being cleared of party goers.''
It's understood some arrests occurred nearby when a fight broke out but it was unclear if they had been to the party or not. The complaint was now being investigated by the Independent Police Conduct Authority.
"We are speaking to witnesses and also all the police officers that were present at the Wellington Street event to ascertain exactly what happened.''
