French Alps murder probe: 'Clues in UK'
Another investigative team from France is to travel the London on Thursday, following the shooting of a British man and his family in the Alps last week.
French prosecutor Eric Maillaud said that cooperation between French and British police was important because "a number of questions still exist in Britain".
Saad al-Hilli, his wife, mother-in-law and a passing cyclist all died in the gun attack. His two daughters survived.