Braer tanker grounding: 20 years on
5 January 2013 Last updated at 00:47 GMT
Saturday 5 January marks the 20th anniversary of the worst environmental disaster in waters around Scotland's coast.
On 5 January 1993, the Liberian-registered MV Braer was en-route from Norway to Canada when she lost power in storm force 11 winds off the southern tip of mainland Shetland.
The tanker was carrying a cargo of 84,000 tonnes of crude oil which was released into the sea.
Have any lessons been learned and are the waters around Scotland's coast any safer?