The two NCOs, Sergeant Major Okan Simsek and Sergeant Veysel Sahin, claimed during their trial in the Black Sea city of Trabzon on Thursday they were ordered to ignore warnings that Dink would be killed.
In evidence before the court, Simsek said they had been given a tip off that there was a plot to murder Dink, the editor of the newspaper Argos and a high profile human rights defender.
Simsek said the tip off had come from a relative of Yalcin Hayal, the man on trial for allegedly masterminding the assassination, six months before Dink was murdered.
According to Simsek, the two officers had passed the information on to their superiors and had met with the head of the intelligence department but that no action was taken.
Okan said he had retracted his previous statements that the information on the planned murder had not been passed on to senior officers, telling the court that he had been ordered to say so by his superiors.