I've monitored public safety for over 50 years! As technology progressed so has my listening methods,capabilities, and expenses. It was money well spent, and provided countless hours of listening pleasure and excitement. Long gone are the days when you'd plug in a handful of crystals and you're good to go. I've owned just about every brand and model of scanner radios made.
For the most part, encryption is not being used for general public safety communications where I live. However, the amount of detail, or information you can glean is less and less. Data terminals and smart phones are being used to discuss sensitive information. What's left is often very vague and boring. Typically you'll hear the initial dispatch, an officer responding, then nothing. You're left wondering what's happening, or how things turned out.
Recently I decided to play around with analog scanners and see what's out there. It's interesting what pops up now and then. Police often use older analog radios left over from the FD, administration, for undercover and detective work. Things can get interesting, but you have to be patient. Business band radios, ham radio, marine radios, and even FRS/GMRS are being used for things you wouldn't believe! I live in Michigan not too far from the USA/Canadian border. I sometimes park by the water hoping to pick up on some illegal activity or covert ops.
My latest venture is revisiting past efforts to monitor the air bands, both private/commercial as well as military. I'm only about ten miles from Selfridge ANGB, and monitor both VHF/UHF communications in and out. It's pretty routine, but it gives me another feel for what's going on around me. It's a more relaxing background sound then the music on the radio these days. Give it a try!