Currently reading Call of Duty. Here's a good quote:
"Whoever or whatever in your campaign granted the paladin his powers would be loath to take them away. As long as the paladin is performing, that is, effectively protecting the innocent and fighting evil, a few minor infractions on the Code of Conduct will likely be overlooked by those powers, and should be overlooked by you.
The focus of the game is on heroic fantasy, not morals and ethics in the real world.
Paladins should be held to a higher standard than lawful good fighter/clerics, and as long as the moral challenges the players face are fun, it is ok. But try not to be too strict. Let the paladin get away with a few mistakes if the action was “borderline”. No matter what type of ruling you’re making, it’s generally better for the campaign to err on the side of the players. They only control one character, and taking away that character’s powers is an extreme measure."