In a tweet in response to the 12th anniversary of Nigeria's Democracy Day, Sani recalled being arrested and imprisoned for purportedly managing an unlawful society.

“June 12 anniversary; While I was serving a life sentence for the charges of ‘managing an unlawful society” (The Campaign for Democracy) and treason; On the left was in J-ward, Aba Prison, Abia State. On the right was in block 2 Cell, Kiri Kiri Prison Lagos,” the former lawmaker wrote on the microblogging platform.

Below are the photographs shared by Senator Sani:

Senator Sani expressed concern in a previous interview about the continued detention of Nnamdi Kanu, leader of the Indigenous People of Biafra (IPOB).

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Sani stated that he has been incarcerated for a long time and was opposed to the Federal Government's decision to keep the activist in the Department of State Services' (DSS) detention for so long.

Senator argued that if the nation was truly law-abiding, the court's decision to acquit Kanu should have been honored.

“As a prisoner who has stayed so long in prison, there is no way a person like me will support an open breach of the constitution and a violation of fundamental human rights.

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“A court has given an order for the release of Nnamdi Kanu, and if we are a law-abiding country and committed to the rule of law, we should respect the law.

"As a prisoner who has spent so much time behind bars, it is impossible for me to support an explicit violation of the constitution and a violation of fundamental human rights.

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"A court has ordered Nnamdi Kanu's release, and if we are a law-abiding nation committed to the rule of law, we must obey the court's order.

“One of the problems we have in Nigeria today is the separatists’ agitation in the South Eastern part of Nigeria. If you go to the background of all those separatists, you will see that there was a time in their history when they believed in the indivisibility of the country. Something must have happened along the way,” Sani said during an interview with Channels last Thursday.