A surviving note from Major Henry Smith, Acting Commissioner of the City Police, indicates that the alibis were investigated of local butchers and slaughterers, with the result that they were eliminated from the inquiry.
Unha nota conservada do sarxento Henry Smith, comisario en funcións da policía da Cidade de Londres, indica que se investigou as coartadas dos carniceiros e matachíns locais, descartándoos así da investigación.