And RO's are not worth the paper they are printed on. And the suspect will not do time if convicted. So really you and your mother should be focusing on real world solutions like being where he cannot locate her or her place of work in addition to real self defense training and options.
False is the idea of utility that sacrifices a thousand real advantages for one imaginary or trifling inconvenience; that would take fire from men because it burns, and water because one may drown in it; that has no remedy for evils except destruction. The laws that forbid the carrying of arms are laws of such a nature. They disarm only those who are neither inclined nor determined to commit crimes.
-- Cesare Beccaria http://www.a-human-right.com/