Riek Machar and his wife are detained after a convoy of 20 armed vehicles entered his home, his party says.
President Boko said the move is "a political decision."
It's aimed at enhancing judicial expertise in data governance, privacy, and legal adjudication.
The meeting finalised the force composition and deployment plans.
Machar and his wife, Angelina Teny, were placed under house arrest on Wednesday night.
Gen Abdourahamane Tchiani has led the country since 2023, after he deposed President, Mohamed Bazoum.
Up to now it has shied away from criticising African governments for supporting participants in a conflict.
The army has been moving swiftly since recapturing the presidential palace on Friday.
Tigray's interim President Getachew Reda fled to the capital, Addis Ababa, earlier this month.
