Crime fighting sniffer rats in Rotterdam
Five "sniffer rats" have been in police training in the Dutch city of Rotterdam, learning how to distinguish between scents - including dangerous explosives.
The brown rats are due to go into active service next year.
They're even going to operate under the names Poirot, Magnum, Derrick - TV detectives popular in the Netherlands - and Jansen and Janssen, the Dutch names for the bowler-hatted detectives in children's cartoon Tintin.
It means the Netherlands will be the first country to use trained rats in civilian police investigations.