No. ALL dogs go to heaven. No exceptions. Poochie chose elephant rather than wheelchair helper, that's okay.
But even if it had been trained for chasing and holding/biting suspects, it would still be doing what it's trained for and what its ancestral genes support. It trusts the boss to determine who's a Bad Guy.
Human police are bad because they decide to be bad, and we don't trust them, but a dog can't know that. We bred them not to know that.