The Inspector-General of Police, Ibrahim Idris, has accused Lawal Daura of gross violation of Nigerian Constitution in Tuesday's barricade of the National Assembly by State Security Service operatives.
In a report on the controversial incident prepared for Acting President Yemi Osinbajo on Wednesday, Mr Idris said Mr Daura was working for some politicians for selfish interest, but did not name the accomplices.
He said Mr Daura did not consult with other security agencies before ordering the siege, and questioned the validity of a security report that allegedly anticipated a violence at the parliament.
Mr Daura was sacked by Mr Osinbajo on Tuesday afternoon. He was immediately handed over to the police for further interrogation, after unathorised deployment of SSS officers that sparked nationwide outrage and condemnation.
Mr Idris said the police have been interrogating Mr Daura in Garki, Abuja, since he was arrested.
The report, seen by PREMIUM TIMES, was signed by Mr Idris on August 8, but it was not immediately clear whether Mr Osinbajo has received it.