A temp program has been ended where violents exes wore GPS bracelets so they could be monitored if they got too close.

http://www.cbc.ca/news/canada/calgary/end-of-gps-bracelet-program-for-vi...

This is just one example where I feel like there is a simple solution to the funding (or at least partial funding):

Get the criminals to cover it.  If someone needs to wear a bracelet because they were abusing someone else, make them cover the cost.