I beg to differ. Restraining orders in my part of the US are obtainable without any evidence about
the person to whom they apply, only the state of mind of the person requesting them.
If evidence were available as to wrongdoing a restraining order would not be required, the person could
be prosecuted. (This would take court time.)
The existance of the restraining order criminalizes a lot of behaviour that would otherwise not be criminal.
Violation of a domestic restraining order results in jail time, and this actually occurs for people doing
such nasty things as sending birthday cards to their children.
The irony is, of course, that anyone who has the intention of doing serious damage to another person is
very unlikely to be deterred by a restraining order.