On 17 August 1854 when the newly convened House of Representatives met, Administrator of the Government (acting Governor) Robert Wynyard was proposing to prorogue the General Assembly as he had not received authority from London. Sewell wanted to continue the debate and the suspension of standing orders was moved. The minority "Wakefieldites" (followers of Edward Gibbon Wakefield) opposed the move and tried to leave so that there would not be two-thirds of members present. This led to a violent turn when Sewell was reported to have pounced on the member for Nelson James Mackay and seized him by the throat. Suspension was moved an hour later when some members of the absent majority returned. Mackay was later found guilty of gross and premeditated contempt. There were moves to find the member from Dunedin James Macandrew guilty of contempt for entering the house with his hat on, but this was withdrawn.