Nutloose
Regarding an appeal, Martin-Baker pleaded guilty, and their reason is given in the book. (And also the reason given by their solicitors, which is slightly different). Lincs Police and the HSE have both refused to assess the verbal, written and video evidence that M-B were innocent of the charge.
As the book says, perhaps the most bizarre aspect of the case is that M-B were accused of not providing information to MoD, and the Judge named an MoD recipient in court. The book explains the process, and why the named person was the correct person to have been informed. The Judge gave SIX other reasons in her remarks why M-B were not guilty, but had to accept the plea. She admitted this caused her 'great difficulty'.
To reiterate, all proceeds go to charity.