 Rodney Hallworth records the criticism made in the 1980s by Charles Hewett, Hannam's Detective Sergeant in 1956, of the selection of the Morrell case to prosecute.Cullen describes it as the weakest of the four cases selected by Hannam, and implies the decision was solely Manningham-Buller's.Robins, who consulted the same police files in the National Archives as Cullen did, as well as material not seen by Cullen, reports that the decision was made when all the prosecution team and police were present, and only after Dr Camps, a pathologist, and Dr Douthwaite, a recognised authority on opiates, had assured the Attorney General and two other lawyers present that the amounts of opiates prescribed for Mrs Morrell would undoubtedly have been fatal.