"Killer Jeremy Bamber has asked detectives to investigate several people he has named in a letter to police.

Officers are considering whether to pursue the case after a senior detective replied to Bamber acknowledging his letter.

The new development came as  Bamber, who was jailed for life in 1986 for the murder of five members of his family, made a series of astonishing allegations in a letter to the Sunday Express, below right.

The letter also explains in detail how new evidence relating to photographs of the crime scene could lead to him being freed. "