SECRET files which name four new Jack the Ripper suspects will not be released to the public.
Retired murder detective Trevor Marriott has fought to have a 900-page dossier on the 1888 Whitechapel murders released.
But a tribunal last week ruled they must be kept hidden. Scotland Yard said living relatives of the suspects could be attacked.
It added that releasing the papers which name “grasses” would jeopardise the recruitment of modern-day informants.
Yesterday Mr Marriott, who is writing a book about the Ripper, who was never caught, said: “To censor the documents is absurd.
“They could help solve the mystery after all this time.”