Arthur Tompkins is a District Court Judge, and member of Interpol’s DNA Monitoring Expert Group. He has a special interest in crimes involving artistic masterpieces.
Today, he discusses the theft, and eventual recovery, of Leonardo da Vinci's Madonna of the Yarnwinder.
The painting is one of only a handful of da Vinci's that can confidently attributed to the artist, and was commissioned in the closing years of the 15th Century.
Its value is estimated to be worth from £30 million-£50 million.
Tompkins talks to Colin Peacock about the high-profile theft in 2003.