• Ms. Hignett, who worked at Birkenhead Glass at the time, testified at the trial that she remembered seeing the name Bolshaw in the works diary about the time Mrs. Bolshaw was killed, with John's initials next to it. (This confirms John’s account that Mrs. Bolshaw contacted him at work.)
  
  
• The works diary was used by a number of different people at the firm and any ripped out pages would have been obvious.