The False Proof Plant at the Town Hall, 12th edition

This book is an abridged version of "The Cathays Files 25", twelfth edition, with additional details. The two books are non-fiction on a british government scandal. In this book the author puts the following question, in two parts, to Andrew Burnham (the british Prime Minister). (i) Why was a prosecution not started in 1987 when the police had said they had forged documents? (ii) Why did the government censor this affair (from the 1980s to the date of publication of this book)?