Five appeal court judges are expected to hand down their decision on the conviction and sentence challenge by disgraced former NSW minister Eddie Obeid.
The 73-year-old was jailed for at least three years in December, after being found guilty of lobbying a senior public servant in 2007 over lucrative Circular Quay leases without revealing his family's stake in the outlets.
During the three-day hearing in June Guy Reynolds SC, the new barrister for the former ALP powerbroker, put forward 13 appeal grounds including that the trial judge made legal errors in his directions to the jury.
He described as "dumbfounding" a failure to have the MPs' code of conduct put before the jury, saying the code did not outlaw Obeid's behaviour.
But Peter Neil SC, for the crown, submitted Obeid was not bound by the parliamentary code of conduct but by the law.
The NSW Court of Criminal Appeal is due to hand down its judgment on Wednesday.