Mr Umar appeared before the committee only once and thereafter avoided subsequent invitations.
The Code of Conduct Tribunal had in 2019 convicted Mr Onnoghen in all the six-count charges of breach of the Code of Conduct for Public Officers.
The judge further said the Code of Conduct Bureau Act exposed Mr Umar to an investigation by the National Assembly than any other Nigerian.
A viral five-minute video had captured Mr Umar landing blows on a security guard at the Banex Plaza, in Abuja.
The Senate investigation was premised on the fact that the petitioner has yet to seek redress in court
Most people know that “national unity” is only invoked as a rhetorical cudgel to squelch dissent.
