He was convicted of fraud in 2009 in relation to the Travelgate scandal, and in 2019 he was reprimanded in Parliament for violating parliamentary rules about the disclosure of external financial interests.
[2][3] His brother is Fumanekile "Fatty" Booi, who was also active in the ANC during apartheid and who later became a prominent figure in the Umkhonto we Sizwe Military Veterans' Association.
[7] On 23 October 2008, the ANC announced that Booi had been appointed Chief Whip of the Majority Party in the National Assembly; he succeeded Nathi Mthethwa, who had been promoted to the cabinet, and was deputised by Gratitude Magwanishe.
The opposition Democratic Alliance objected to Booi's appointment as Chief Whip because he was at that time facing criminal charges in connection with the Travelgate scandal.
ANC Deputy Secretary-General Thandi Modise told the media that the party "was not impressed with the to-ing and fro-ing between the committee and the minister.
Booi did not dispute that he had done the consulting work, but he argued that parliamentary rules did not require him to disclose the contract in 2016 and denied that there was any possible conflict of interest.