“who are the brain police?”
“Here am I, sweating my brains out to introduce a really sensational incident into your dull and disreputable little police investigation, and you refuse to show a single spark of enthusiasm.”
“Who are you? You don't belong to the police?''I am better than the police,' said Poirot. He said it without conscious arrogance. It was, to him, a simple statement of fact.”
“That's libertarians for you — anarchists who want police protection from their slaves.”
“The brain is always thinking, but who is it who is thinking?”
“I recognise Santangelo's dad, who saves police brutality for when he gets to his son.”