Frolis maneuver is NEEDED. For them to be human if they become part of humanity and kill some one and they are you wont you get blamed? or discrimination.
What about identical twins? They have the same DNA, yet we never experience any problems where one twin kills somebody and the other gets blamed.
All they would need is some sort of identification system. Driver's license, birth certificate, that sort of thing. Stuff we already have in place, for humans, at least.
But then you get into discrimination, because a person checking your ID could be like, "Hey, your last name is a number? Yeerk!" So maybe Frolis maneuvers would be better for everyone involved.