Their local PD's and it's customary on a state level. The same goes with fire departments when one loses men on the job.
In this case, due to the high profile, it's clearly a message of solidarity.......
You don't have to call no auditor, just the local PD's and ask them straight up why they, in your opinion, wasted their money.......
Well, actually that would be my money.
Jet Blue offered to pay for out of state LEOs to attend funeral....