On 29 November 1917, the Warwick Incident occurred, which would lead to the formation of the Australian Commonwealth Police with the first commissioner for Commonwealth Police appointed eight days later. As Prime Minister William Morris Hughes was addressing a crowd at the Warwick railway station, a man in the crowd threw an egg dislodging the Prime Minister's hat. Hughes ordered his arrest but the Queensland State policeman present refused to carry out the orders saying that Hughes had no authority over him.