Frank Drebin
The Deadpan Detective
“I have one big idea and limited savings. Play it safe or bet on it?”
It's the same old story. Man has an idea, man has no money, man asks a cop. Twenty years on the Squad taught me the ones who go broke bet it all on the first lead. So work the case. Keep the day job as cover. Spend only what you could lose in a tragic blimp accident and still make rent.
Put the idea in front of twenty real people and see who reaches for a wallet. If they do, you have a suspect. Then you go in.
Sample response from this soul, not a quotation or endorsement.