Wiktionary
perfect crimes
n. (perfect crime English)
Usage examples of "perfect crimes".
This little bank heist will go down in the annals of perfect crimes.
The fellow has killed eight people, three of them children, and he's always prided himself on pulling off the perfect crimes.
Joe, he'd gone exploring in the tank and closed some relays like a logic is supposed to do, but only when required, and blocked all censor-circuits and fixed up this logics service which planned perfect crimes, nourishing and attractive meals, counterfeiting machines, and new industries with a fine impartiality.