A police officer who allegedly discovered a nail bomb in the pocket of one of the Bloody Sunday victims was unaware three other devices were said to have been found on the body at the time, the Saville Inquiry heard today.

The sister of a teenager shot dead by British troops on Bloody Sunday is mounting a legal bid to have Northern Ireland’s top judge excluded from an Appeal Court hearing challenging a ruling to have police witnesses screened at the Saville Tribunal.

A Belfast High Court judge has rejected a bid by the sister of a Bloody Sunday victim to overturn a ruling that allows some police witnesses to give evidence behind protective screens.

Thousands of people are gathering in Derry to retrace the route of the Bloody Sunday march 30 years ago.