In late August, the New Zealand Police's much-loved guinea pig mascot - 'Constable Elliot' - died. Complete with his own custom guinea-pig-sized police outfit, Constable Elliot was a fixture in the force. In Constable Elliot's honour, we take a look at some of the world's top crime-fighting animals:
Louie the drug-busting Lab
Earlier this year, one of Brisbane's top cop dogs hung up his collar after a successful career sniffing out drugs at Brisbane Airport. During his eight years working for the Australian Federal Police, Louie - a black Labrador - busted a whopping A$20 million worth of drugs and A$2.5 million in illicit cash.
Iemon the crime-fighting cat
Before joining the police force, Iemon was a stray cat, wandering the streets of Kyoto, Japan. One day, the two-week-old kitten wandered into Yoro Station and never looked back. Now he's an integral part of the police station, travelling with officers and comforting victims in times of crisis.
Tizer the transport police cat
Nearly 10 years ago, police at a north London railway station recruited a 13-year-old cat and inducted him into the force as an honorary constable. In his role as "Chief Mouser PC Tizer", the feisty Tomcat - adopted by the British Transport Police through the Cats Protection charity - became an essential member of the team, hunting down the most important criminals of all: mice.
Eagles vs Drones
In the Netherlands, the Dutch National Police last year trialled the use of eagles to bring down rogue, unauthorised drones from the sky. The eagles are trained to see drone as prey, catching them and bringing them to the ground.