I have to second the opinion of the person that stated folks will pick on a law enforcement guild for "quick RP".
I will emphasize that it is not the guild, or how well it is run, or how drama-free it is that will be the problem. It is all of the idjits who will be targeting you, and how you can't tell that they are idjits until it is too late.
Your guild will be a bantha-drawn cart that will have one fantastic bantha pulling you straight ahead responsibly and with perfect reliability. Your other bantha will be a derp-eyed drooling lame and limping bantha constantly trying to drag that cart off to one side. No matter how great your dependable bantha is, it will get pulled to the side eventually.
JED