The British Government can't publish the report. There is too much associated veterinary crime that would be exposed, not least some connected to the horse racing industry and prominent cronies.
So much for government promises of transparency, not least by the Prime Minister, Cameron, who claimed, correctly, that international criminals were responsible.
The Guardian news report is here.
The unconvincing Defra response is covered by The Independent here.
Anyway, The Guardian headline:
Official report into horsemeat scandal shelved amid new food safety fears
Publication of inquiry into 2013 food fraud delayed after national salmonella outbreak and reports of contaminated chicken
The Guardian, Friday 15 August 2014 19.47 BST
And The Independent follow-up: