Recently I've been hearing the CFD EMS coordinators actively using the CPD Patrol talkgroups. It seems they are now directly using the PD talkgroups to coordinate staging and response to police incidents. Also, I haven't heard a peep out of 8 F-P for a long time. This new plan is a good idea, before when they used F-P it would take forever to get the word from PD whether a response was needed or not whereas now, they can just communicate directly with the police.
Actually not a good idea; it's a failure of interoperability due to the unwillingness of CPD to leave their home talkgroups, both in the field and at the dispatcher level. By using POL-FIRE (aka 8 P-F), dispatchers from both departments have access and coordination can be done where everyone can hear it, and channel changing is minimized. They might as well get rid of POL-FIRE for all the good it does.
Now the coordinators have to go from 10 FIRE to 8 P-F to the police talkgroup and back to 8 P-F and maybe back to 10 FIRE if everyone hasn't changed channels, and no one else from CFD (dispatchers, firefighters, etc) has access.
The most effective interoperability is done on common channels where the majority of users (preferably all) have access. By forcing a group of users to have to change from channel to channel to coordinate an incident, you have caused potential delays in coordination since the few with access must now change channels to relay instructions, with the associated risk of "lost in translation."