Mrs Kasir ran the notorious paedophile brothel Elm Guest House in South West London.
One abnormality raised in the files is a decision by the poison unit at New Cross Hospital in London not to analyse the syringes and vials found next to her body to see if they were connected to her death or to check her stomach contents.
A man who said he was taken there as a child claimed he was plied with drink and made to wear a fairy costume while abusers chased him.
The files even raise a question mark about Mrs Kasir’s home country.
A 1982 leaflet published by the Conservative Group for Homosexual Equality said: “The facilities include a sauna, solarium and video studio.” Just weeks later the guest house was raided by police.
Carole and Haroon Kasir were convicted at the Old Bailey of running a brothel.