To coordinate the test, codenamed "Operation Hurricane", the British government established a Hurricane Executive Committee chaired by the Deputy Chief of the Naval Staff, Vice Admiral Edward Evans-Lombe. It held its first meeting in May 1951. To deal with it, an Australian Hurricane Panel was created, chaired by the Australian Deputy Chief of the Naval Staff, Captain Alan McNicoll. Its other members were Colonel John Wilton from the Australian Army, Group Captain Alister Murdoch from the RAAF and Charles Spry from Australian Security Intelligence Organisation (ASIO). Cassels or his representative was invited to attend its meetings. A pressing question was that of observers. Churchill decided to exclude the media and members of the UK parliament. As Canada was a party to the 1948 "Modus Vivendi", Canadian scientists and technicians would have access to all technical data, but Australians would not.