He said it was important that all women felt safe in their workplace.
"I've got two daughters myself. The whole point is that there'll be a bunch of middle-aged men who'll think twice before letting their hands wander around the place.
"The consequences of this type of stuff are not trivial. They can be long-lasting."
A judge would now determine whether sufficient evidence could be brought forward in order to warrant a trial, Mr McCready said.
The paperwork would be officially filed then.
Mr McCready has already filed a sexual harassment complaint with the Human Rights Commission against Mr Key and a code of conduct complaint against two police officers to the Independent Police Authority over the ponytail-pulling incident.
"The job is done. I've done all I can.
"These things belong before the proper authority."
Mr McCready successfully brought former ACT leader John Banks before the courts with one of his private prosecutions.
He said this case was progressing a lot faster than his prosecution against Mr Banks.
Mr McCready has written to waitress Amanda Bailey but has had no direct contact with her, he said.
"To get to this point with John Banks it took a year. This has been one week. It's going well."
