Former director of public prosecutions Lord Macdonald has said that he thinks "there's going to have to be an investigation" into what happened to a 1983 50-page dossier compiled by late MP Geoffrey Dickens, that allegedly details paedophile activity by Westminster MPs.
He said it was "alarming" that the file has gone missing.
However, Lord Macdonald also warned on BBC Radio 4's PM programme that an inquiry into the issue "may not come to any particularly illuminating conclusions but may simply delay proper forensic criminal investigations".
It sounds to me as though there needs to be further investigation into this. Some of the detail is more than troubling.
It's always alarming when material goes missing.
This may just be the passage of time, it may not be anything sinister, but I don't think people are going to be satisfied for this to be left as it is.
I think there's going to have to be an investigation into this dossier and what may have happened to it, and indeed what the police did when they received it.