Does anyone know what HPD believes is the legal basis for “you cannot use the firearm until you get the registration in an email from HPD”? I haven’t been able to find anything in the HRS to that effect.
I would categorize that statement as providing legal advice.
HPD tells us all the time they are not allowed to provide the public legal advice.
Might be a good test suit to ask why they can offer that kind of advice, but when we ASK for their understanding of a given gun law, they refer us to the HI AG, who promptly replies, "We are unable to provide legal advice to the general public ..."
In my non-legal, non-lawyer opinion, they are making crap up again as they frequently do.
Given the set of circumstances -- you REGISTERED the firearm with HPD online -- their lack of responding with a copy of their paperwork doesn't change that. Plus, unless we are required to keep a copy of that paperwork with any firearms outside the home, they would have a difficult time enforcing such a requirement.
That's my unprofessional read on the situation. As you said, nothing in the law says you can't use a firearm you registered but have not gotten the paperwork back for.
Think about it this way. When you have 5 days to register a firearm you acquired legally, by their definition, you are in possession of an unregistered firearm. Whether or not you use it, that's still a crime. Nobody would ever be arrested, though, if they used it over the weekend while the range is open and HPD is closed during that 5-day period.
That's how illogical our laws are -- and hence how stupid the HPD "legal" advice is.