what is the process for filing a csc first degree chare that is 8 years old. also if the victim is now older than 18, could i still bring the charges? i am her father... although i would not do this without her consent, i would like to know if i could.
Yes you can. Go to the police.
You or your daughter do not file CSC charges. The prosecuting attorney does, but only after the facts are investigated by an independent agency, like a police department. So, report this to a police agency that has jurisdiction in the place where the alleged crime happened -- a city/township police department, the county sheriff, or even the state police.