The Divisional Police Officer of the FCT Command, James Ndachaba, has named the security personnel attached to Senate President David Mark, and not his men, for the tear-gassing of Speaker, House of Representatives, Aminu Tambuwal and other lawmakers on 20 November. Ndachaba made the statement to a Senate ad-hoc committee, headed by Senator Ahmed Makarfi, probing the incident. Ndachaba’s claim did not go unchallenged by representatives of other security and paramilitary agencies attached to the National Assembly and present at the briefing. The National Assembly security team debunked Ndachaba’s claim, while the latter insisted that he had seen a footage showing Mark’s security detail in the act. Markafi reminded Ndachaba that he had made a written submission to the committee and was on oath, therefore expected to give accurate accounts of what happened on the day. Ndachaba told the committee that he watched the video on the television and saw that a tear gas canister was released when the senate president attempted to enter into the chambers. Dissatisfied, Markafi asked Ndachaba if it was only at the entrance of the House of Representatives that the canister was fired and not anywhere else within the premises of the National Assembly. In his response, Ndachaba explained that the canister might have exploded at the main gate when an attempt was made to disarm a police officer.