The Code of Conduct Bureau, CCB, has again amended the charges brought against Senate President Bukola Saraki.
Mr. Saraki is facing trial on a 16-count charge for alleged false asset declaration at the Code of Conduct Tribunal, Abuja.
The trial, which began in September 2015, was earlier amended in 2016, with an addition of three charges.
A prosecution witness, Samuel Madojemu, was already in the dock presenting his evidence when the prosecution counsel, Rotimi Jacobs, announced his decision to amend the charges against Mr. Saraki.
After informing the tribunal about the application for hearing on the amended charge, the tribunal chairman, Danladi Umar, said he had not been briefed about the decision to amend the charges.
The defence counsel, however, said they had been served with a motion for the amendment of charge by the prosecution.
Subsequently the matter was stood down for an hour for hearing on the application to amend the charges.
Earlier Mr. Madojemu, who was head of investigation at the CCB, told the tribunal that investigation which led to the trial of Mr. Saraki had been triggered by a previous investigation conducted by a presidential investigation team in 2006.