CCTV trial keeps an eye on fishermen
26 February 2013 Last updated at 00:41 GMT
The EU Council of Ministers is due to vote on plans to restrict discarded fish, caught by accident, in a bid to protect stocks across Europe's fishing grounds.
Spy-in-the-wheelhouse CCTV cameras trialled in the UK are said to have cut cod discards from 38% to just 0.2%.
Fishermen on the trial are obliged to land all the cod they catch, whatever the size.
They have been rewarded with increased quotas and permitted extra days at sea.
BBC News environment analyst Roger Harrabin visited the Marine Management Organisation in Scarborough to see how the scheme works.