No. There is no modification to decode modern day encryption. It will never happen, besides the illegal part.If the police did something to make impossible to here on a scanner they would have to switch to an encrypted broadcast. If that is the case you will be able to hear it on a scanner or modify the scanner to decode it, even if you could modify it, it is illeagle to do so.
Aside from my earlier snark, all I meant by my earlier post is that it is not difficult to obtain ProVoice equipment. It just takes time(if relying on the availability in the used market) and money(even more so if you don't want to wait for something to come up on ebay and buy from a dealer). Perhaps you'd like to raise the considerations of programming and other difficulties that a person with a radio in hand might come up against before they're ever listening to a digital system. That's an important caveat I would say to just being able to purchase a radio off the internet.Deja vu? Name change? Are you posting as both davidbond21 and tmkornegay -- because I think that is a TOS violation.