The fingerprints of koalas are indistinguishable from those of human beings.
PC Dixon: Margaret, your number's up. I arrest you for the brutal slaying of Colonel Mustard.
Margaret the Koala: Let's see you prove it, copper.
PC Dixon: Shut your muzzle or I'll shut it for you.
Margaret the Koala: You'll never bang me up, copper.
PC Dixon: You're nicked, Marge. The candlestick has your dabs all over it
Margaret the Koala: Candlestick? The world is full of 'em. You found some rubbish lying around the library and you think you can pin it on me. Well, I know better, copper. Those dabs could be anyone's. Any one of six thousand million people could've put those dabs there.
PC Dixon: Dabs that stink of eucalyptus? Tell that to the judge. Get in the van, you marsupial bastard.