Hampshire Safeguarding Adults Board have produced this document covering a wide range of issues including understanding of causes of choking; recognition of choking risk; emergency response to someone who is choking; training for staff; commissioning placements and supporting people to keep healthy.

See here: http://documents.hants.gov.uk/adultservices/safeguarding/Reducingtheriskofchokingforpeoplewithalearningdisability.pdf