Watch this archive video footage of forensic officers searching near the Regent's Canal lock during their investigation into the death of Gemma McCluskie.
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Commuters could be caught out by the alterations which will see many existing trains leaving stations up to two minutes early.
Dog walkers in Richmond, south west London, will now be limited to walking four dogs at a time.
The pictures, which have not been made public before show the devastation caused after the IRA truck bomb exploded.