Cited by A Short History of the RSPCA Animal Hostel at London Airport. Pt. 2: International Activities.
Description:

Hancock 'tried to lever the Society's newfound expertise in the effects of air transit to agitate for the improvement of conditions for animals, both on board and prior to loading. Shortly after news of the Rhesus deaths broke, he forwarded to government officials a list of nine proposals designed to severely reduce such incidents. These included mandatory issuance of veterinary certificates of good health at airports of origin, the definition of minimal requirements for cages, guarantees regarding conditions on board, and a total ban on the carriage of wild-caught animals.'