asked Her Majesty's Government:

What audit trails are in place for material handed over by the Royal Ulster Constabulary GC or the Police Service of Northern Ireland to inquiries that are being or have been conducted. [HL3863]

The PSNI has strict security arrangements in place with the independent public inquiries. Depending on the level of classification of the documentation, the material is either hand-delivered or sent via courier or recorded delivery, with the relevant inquiry signing and confirming receipt of all documents. I am informed that the inquiries also maintain records of documents they receive.