A group, Agricwatch Alliance has accused President Muhammadu Buhari's Chief of Staff, Prof. Ibrahim Gambari of shielding the Managing Director of Lower Niger River Basin Development Authority (LNRBDA), Dr. Engr. Saheed Aremu, who is facing corruption allegations. The group alleged that Gambari has been frustrating the corruption case against Aremu by using the minister of water resources among other top government functionaries to protect him.