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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?