I don't know what standards you think you are comparing HPD to, but I think your quite wrong Surf. I've just had close friend go through the Academy, and know about how much "firearms" training they get. With the exception of HRT, standard officers are not required to train enough. Some who enjoy firearms train on their own, but many times they are out alone at kokohead. Furthemore, the City, like almost all government agencies including the Marines and the Army, have significantly cut back their firearms training because of money.
All said - the issue is not with HPD, it is with double standards. Citizens should be allowed to train just like any other law enforcement agency. We have the same responsibilities when discharging a firearm as they do. The exception is, when an officer accidentally kills someone in the line of duty nothing happens. When a citizen accidentally kills someone because of a bad shot, they go to court to face possible criminal and or civil penalties. That is just the reality of civil immunity that many government agents enjoy.
The other problem is that if there are no safety issues with the police department using the range outside of normal public hours, why shouldn't the public be able to use it under the same circumstances. (I.e., permits etc.)