leominster

Hello all! I've noticed the DB was updated a while back to include four tac channels for Leominster PD, shown below: I have a few questions about these, but the most burning one is where did the information come from? I can't find these frequencies licensed to the city on the FCC website, but...

I have a SDS200 with DMR key activated. I programmed Leominster, MA UMASS Hospital with the 14 frequencies found on FCC Website. I set it up as conventional and I hear a control channel. I also hear the staff talking on some of the other frequencies and it shows as DMR with Slots 1 and 2...