The markings show up under ultra violet lights and, unlike property marking pens, are nearly impossible to remove.

BBC: NEWS | UK | England | South Yorkshire | Security kits to cut burglaries

For the first time all owners who pay harbour fees on the River Hamble are being issued with forensic property marking system SmartWater.

BBC: Boat owners in Hampshire given anti-theft paint

At the start of the new year, The Wall Street Journal reported that 70 Chinese cities saw property prices head lower in December from the previous month, marking the third consecutive month of declines.

FORBES: China ETFs Navigate Tricky Housing Bubble