article_snippet.sent: The family of a four-year-old girl who was sexually assaulted and murdered more than 75 years ago have accused police of a 'cover-up' after officers ordered that the case file be kept secret until 2040.
article_snippet.sent: Now, Terry Phillips, 71, who is Joyce's cousin, has accused the Metropolitan Police of a 'cover-up' after the force said information could not be released about The schoolgirl murder because it is unfair to the mystery suspect.
article_snippet.sent: The family of Joyce (pictured) are accusing police of a 'cover-up' for not releasing paperwork on the case . '
highlights_snippet.sent: Family accusing police of a 'cover-up' after case file was closed until 2040 .