DNA fingerprinting gives police a virtually 'foolproof' way to link a suspect to a crime scene.
a 'foolproof' plan
(..) put us in individual baggies. We'll roll down the counter, out of the window, off the awning, into the bushes, across the street, into the harbour. lt's foolproof. - Who's with me? - l. l think you're nuts. No offence, kid, but you're not the best swimmer. (..)2003 Finding Nemo