It isn't illegal to listen to police scanners.
It is illegal to listen to police scanners in order to do something illegal.
Eg. Just listening to to police scanner is not an issue. Listening to a police scanner in order to avoid them in order to go drag racing or in order to rob a bank or whatever IS illegal...
So. If you are caught doing something naughty and you have a scanner. Then you may get in trouble for that.
Otherwise it isn't a problem.
You can listen to police scanner on the internet.
Online Police ScannerI was listening to the police scanner when the "Race Riots" in Sydney. about half way through one night, someone started started transmitting on the channel to stuff the police up.
Transmitting on the channel is illegal.
Just listening to it isn't.
Most police are changing over to digital now anyway. So these scanners wont be of any use.
Thank you
and good night