The Louvre heist seems to have been carried out not by an organised crime syndicate, but by petty criminals.
Four thieves last month raided the world’s most-visited art museum, in daylight, stealing crown jewels worth an estimated $178 million in just seven minutes.
French police arrested two men the following week and over the weekend a man and a woman in their 30s, living in a northern Paris suburb.
France Correspondent Catherine Field told Mike Hosking the criminals allegedly left behind a fair bit of DNA evidence.
Those who were arrested, Field says, already had criminal records, which meant Police were able to locate them.
LISTEN ABOVE

Mike's Minute: Should Anna Breman be in trouble?
02:04

Rod Liddle: UK Correspondent on the Conservative MPs joining up with Reform UK
07:48

Catherine Field: France Correspondent on European leaders' handling of Trump's attempts to take control of Greenland
04:16