A restraining order doesn't mean you committed a crime.
It simply is a way of keeping two parties apart, as long as both parties honor the order.
I'm sure you don't wish to have any contact with a creature that raped you.
So, simply stay away from the savage creep.
The order means he must also stay away from you, or at least it implies same.
If you need to have a paternity test done, because you believe the rapist may have impregnated you, work with the prosecutor, or the state agency that established paternity and helps collect child support.
A restraining order doesn't mean you can't sue him, or be in the court room at his trial.
It means if you see him in Walmart, you scamper away.
Again, I certainly wouldn't want to be near my rapist in Walmart, or Burger King.
Establishing paternity in CA, hit that sucker in the pocketbook. LEGALLY, get him to pay child support for the next 18 years:
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Parentage/Paternity - paternity_famlaw_selfhelp
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Paternity Opportunity Program (POP)
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The state will also assist you with certain expenses because of the crime you suffered:
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Victim Resources - VCGCB