A federal high court in Abuja has remanded Omoyele Sowore, convener of RevolutionNow Movement, in custody of the Department of State Services (DSS).
The activist has been in detention since August 3 when he was arrested in Lagos.
A court had earlier granted him bail but the secret police refused to release him.
On Monday, he was arraigned on a 7-count charge of felony brought against him and Olawale Bakare, his co-defendant, by the federal government.
The duo pleaded not guilty to the charges.
Ijeoma Ojukwu, the presiding judge, had ordered the remand of Sowore and Bakare pending Thursday when she would hear their application for bail.