Most of these crimes are done with no evidence, no witnesses, and varying stories due to alcohol or other factors.

Those three Toronto police officers had multiple Crown Prosecutors working full time with an unlimited budget to try to convict them and they still failed.

The conviction rate for this type of crime is always going to be horrendously low.  

Feminists would love to see the burden of proof for this type of crime lowered but that's exactly the wrong thing to do