Field appeared in court on 26 November 2007 on 15 counts of bribery and 25 of attempting to pervert the course of justice, and was released on bail without entering a plea. After a depositions hearing in mid-2008, he was remanded to the High Court for trial on 40 charges. On 20 April 2009, his trial commenced on 35 charges, 12 for corruption and bribery as a member of Parliament and 23 for wilfully perverting the course of justice. On 4 August 2009, Field was found guilty of 26 charges at the High Court in Auckland. The ten member jury found Field guilty of 11 of the 12 bribery and corruption charges, and 15 of 23 charges relating to attempting to pervert the course of justice.