A Royal Marine convicted of murdering an Afghan insurgent will have to wait to find out whether his appeal has been successful.
Three judges at the Court Martial Appeal Court in London will now give their decision at a later date.
Sgt Alexander Blackman was found guilty by a seven-man court martial board last November and sentenced to a minimum of 10 years in jail.
Lawyers for Sgt Blackman told the court the verdict should not stand because the court martial process did not demand the same level of proof as a normal criminal trial.
Anthony Berry QC also argued that the court martial board had not taken into account the "tremendous stresses" of combat which had caused Sgt Blackman "briefly to lose his head".