Serial litigant Graham McCready will this week take the first steps in his bid to haul the Prime Minister before the court over "Ponytail-gate".
McCready, who successfully brought former ACT leader John Banks before the courts with one of his private prosecutions, has prepared documents to file to put John Key in a similar position.
The fiasco made international headlines throughout the week after waitress Amanda Bailey came forward with her story of the PM tugging on her hair.
In a memorandum to be filed with the Auckland District Court, McCready alleges a Crimes Act charge of male assaults female, which carries a maximum penalty of two years in jail.
"This was not a game of 'horseplay' as claimed by the named defendant. Rather it was an ongoing act of harassment where the victim was stalked and assaulted the victim continually in her work place," McCready states in an affidavit.