Other than probably being unconstitutional to deny ANYONE who has the right, has met all requirments, is not a convicted felon, convicted of domestic violence, or any number of other LEGAL denials. Why would any CLEO (chief law enforcement officer) deny said person?
If you were the CLEO, would you want to risk your career, income, lawsuits, etc, because you THOUGHT that someone was a member of a gang of some type?
If the supposed gang member had actually committed a crime in which the local LEO knew about, he would be arrested and charged with said crime.
Also, if you were affiliated with some type of gang, why would you WILLINGLY submit yourself to being fingerprinted(part of the CCW procces)? Any future crimes in which prints can be lifted, and are put into the system, you would come up as being on file. Why would a criminal do that unless he is VERY stupid?
Hate to tell you, but criminals still aquire their weapons the old fashioned way, either by stealing them or buying them on the black market.
Let's just give in some more to OUR Gov't...... NOT!!
And for those that don't know, I AM an LEO, and there is no way in hell that I am giving up my constitutional rights for anyone, that includes the Gov't that pays me.