FOI release 1118
Provide a copy of full complaints procedure and a copy of the decision to agree the complaints procedure.
IDBS has recently update their complaints procedure and updated their website here: https://www.gov.uk/government/organisations/disclosure-and-barring-service/about/complaints-procedure. However the copy of the procedure on the website appears to be a summary.
The information was released on 20 January 2014.