A coalition of Civil Society Organisations, CSOs has threatened to sue the Nigeria police force if it fails to produce Michael Adikwu, a member of the arrested suspects in the Offa robbery incident.

Adikwu, who reportedly led the gang in the incident on April 5, 2018, is said to be missing. He had confessed to have killed several policemen as a revenge for his “unfair” dismissal from the police.

Thirty-three people, including pregnant women and 12 police officers, were killed in the attack.

In a petition signed by Collins Abu on behalf of the coalition on Monday, the CSOs asked the police to immediately produce Adikwu, or be “dragged” to the International Criminal Court.

“If he (Adikwu) has been killed, the police should come clean and name his executors, this is in keeping with the Freedom of Information Act (FOI).

“We demand an immediate investigation into the disappearance of this suspect, and we ask respected international human rights organisations to call on the Nigerian government and the police to produce him,” the petition read.

The CSOs also demanded an independent probe of the Offa robbery “because the police appear compromised”.

“Failure to produce him, we will petition the International Criminal Court and also petition all embassies with evidence so as to revoke visas of the IGP and other human rights violators,” they said.

Adikwu, who was not paraded alongside the other arrested suspects, was said to be shot dead while in custody in order to coerce confessions from other suspects.