How can I download free police scanners to my Gravity T cell phone by T-Mobile?
Hoe can I look a movie on my phone
If it lets you stream from the web your best bet is http://www.police-scanner.info/live-police-scanners.htm because no app will let your phone receive radio frequency's it was not built to be able to receive. for that you need a real radio scanner.
First things first your cell is using the TouchWiz OS, which is a proprietary OS owned by Samnsung, so finding an app for your phone will be harder than iOS or Android.
I tried Google but don't have anything to offer, sorry.