BC_Scan, there's no need to be mouthy or rude. Don't make me get out the moderator stick.
Beefy: Without knowing what frequency you're listening to and/or what modulation they're using, it's hard to give you a definite answer. But the most likely answer is that you'll need only a regular old digital scanner such as a Uniden BCD396T (or BC396XT, coming out in about 2-3 months) or the GRE PSR-500. That is true if they are using regular P25 digital modulation, on their existing VHF channels or on any other band/system, unless they have gone to encryption. If they have, there's no listening to them, period.
davidmc36: I sincerely doubt that a mid-Vancouver Island detachment would join the ECOMM EDACS trunk system which is based in the Vancouver metro area. The system just doesn't have the range for that.