Volcel police can't arrest me, I have diplowlmatic immunity 
I am sick of conservative weenies saying tattoos are ugly or self-mutilation or whatever. They're dorks, losers, dweebs even. Tattoos are ART. Hot, sexy ART. Anyone who says otherwise is a repressed nerdlinger that needs to remove the broom from their ass. I see a dude with some sweet tattoos and I'm like damn he's pretty as shit.
It still simplifies your identification if you're arrested.
If you're arrested, they're going to identify you regardless, tattoos or not.
Make them spend more time and resources on this, every grain of sand in the machinery of the state helps.