304 is not in the DB. However the closest 3xx is prosecutor. So maybe something related to them?
And 401 is patrol dispatch. You heard them in the clear?
200 - 208 Police - or rather former police
300-308 Pros - 308 was mostly major crimes like Narcotics
400-408 Sheriff
most times 201 & 301 are patch together
TG 111 & - 108 - 114 sounds like possibility a mix of interop's or commons shared by partners agencies
Think they were only testing. Radio IDs were 92XXXXXX, as in loaner portables from County probably. Franklin Lakes was testing a week ago with loaner portables from Oakland with 4210XXXX IDs.