Further charges were laid against Orkopoulos on 16 April 2007. On 14 March 2008, he was found guilty of 28 offences relating to sexual assault of a minor, indecent assault and supplying heroin and cannabis. On 21 May 2008, Orkopoulos was sentenced to 13 years and 11 months in jail, with a non-parole period of 9 years and 3 months. In March 2009, he lodged a challenge against his conviction in the New South Wales Court of Criminal Appeal. On 25 August 2009, the NSW Court of Criminal Appeal rejected Orkopoulos' appeal against his conviction but reduced his maximum sentence to 13 years and eight months (instead of the 13 years and 11 months sentence by the trial court) with a non-parole period of nine years.