Question about legality

I live in Manchester CT, recently the department changed the frequency codes and will not share them with the public. Is this legal? I thought this was protected under FOI act? I asked an officer and he claimed this was done for their safety even though there is no record I can find of a Manchester officer or a state of CT officer harmed due to a scanner being monitored to find them? For 35 years I have listened and now that I received a brand new scanner for Xmas, I can't listen anymore........bumming in Manchester

Question about legality