Originally Answered: Can I take my stepdad to court for something that happened 6 years ago?
What a tragic story to hear! For your own safety and own sake, get educated about the definitions of crimes and your rights. Lawyers and Police can unwittingly bowl you over with far too much information and opinions if you're not well prepared.
First, here is a great site which talks about definitions and statutes for Child Abuse and Neglect by state:
Next, aggravated assault, battery, criminal threats, child endangerment and a whole host of issues has been brought up by you. Again, that is integrated in to your State's specific statutes.
This is a HUGE, overwhelming site, but it does provide you with all the crimes and statutes by state. It's terrific information.
Having only your Mother as a witness might make things difficult, but not by any means impossible. If she is willing to assist, and if you're willing to undergo psychological evaluations, evidence can still be gathered. Show any pieces of evidence (diaries, pictures, props) to the Police.
It is important to understand a bit about how the criminal justice system works before reporting as well. The Statute of Limitations is a time frame in which criminal charges can be filed. The Statute does not begin from the time the crime was discovered or reported, but from the time a crime was committed. Police officers and lawyers will both know the applicable Statutes for your state. Next, please understand that it's not the Police that choose if charges should be pressed. That is solely in the hands of the District Attorney. A lot of people blame Police for not following through, but their hands are just as tied as yours. If Criminal charges were filed, you are not a plaintiff in the case, the State is, so you have no need for a lawyer. In essence, the State IS your lawyer.
Understand that for the most part what he has done is criminal and may not provide you much in a civil court. I would honestly speak to a civil court lawyer AND the Police. You do need to find your own lawyer to enter in to a Civil Case. They would be able to best advise you there.
I wish you the best of luck, and the quickest of healing in this process.