[travisoneill1]

> at which point the free speech evangelists are nowhere to be found

I'll let you skip that step. Since the vast majority of cases are false positives and police don't have the resources to follow up on all of them, it is inevitable that your example will happen. There is no such thing as a 0% failure rate. Your dismissal of the report to police option because it is not 100% effective is too ridiculous to be taken seriously.

[anigbrowl]

Sounds like we're quite some way from an 0% failure rate. 11% of a population of murder victims (n=231) had a restraining order in place against their killer at the time of the homicide. Although only a small number of all the restraining orders issued result in homicide, courts in one state found that domestic violence restraining orders were violated about 1/3 of the time, whilers self-reported a total closer to 60%.

https://www.ncbi.nlm.nih.gov/pubmed/18523113

http://extras.denverpost.com/news/violence/viol0912.htm

'too ridiculous to be taken seriously' - I'll put hard data up against epistemological hand-waving any day of the week. I fact-check my claims before I state them publicly.