In the United States, in areas where guns have to be registered, the criminal is not required to register his gun. This is because registration of a gun would be self-incrimination. This is because by law a convicted felon is not allowed to own a gun. They will find a way to get a gun. If they don't get a gun, they may use a knife or some other item that can cause injury or death.
Incest is kept as a secret in most famlies where it does occur.
If you have a problem with incest, I suggest that you contact someone as soon as possible to help you. You must be careful in who you choose to turn for help and a pastor at your church may be your best choice. Another good source that I have recommended people to go see is their local United Way which can be contacted through this web site . I sent someone to United Way locally here in Georgia, but they have offices nationwide that supply excellent services. Not all of the news media is that way.