I'm no lawyer, but as far as I know, the difference between harrassment and a hate crime is that "A Hate Incident is any incident which the victim, or anyone else, thinks is based on someones prejudice towards them because of their race, religion, sexual orientation, disability or because they are transgender." (according to the CPS)
I explained somewhere at the top of this thread what the police told me about harrassment. It takes a long time for something to be done and the police's first step will be to issue an unofficial warning. It also needs to happen at least twice. The logic is that people need to be told that their behaviour is causing somebody grief. If they're not told, they don't know.
However, if an incident is classified as a 'hate incident' it's fast-tracked and has to be recorded, in case it escalates. I guess the argument here is that the victim is female and was, therefore, being targeted because of her sexual orientation.
It appears that, in the end, it was treated as harrassment and the builders were warned. End of story!
@breeze
I hated wolf whistles and I didn't think they were a 'bit of fun'. Give me a man with a brain and sensitivity rather than one with caveman sexual instincts any day.