Lies and cover-ups have emerged at the inquest into the killing of activist Rex Masai, with top echelons of the National Police Service (NPS) coming under scrutiny from the Independent Policing Oversight Authority (IPOA).

IPOA’s lead investigator, Mr Justin Nyatete, on Thursday told the court that a key suspect, Police Constable Isaiah Murangiri Ndumba, lied to investigators about his mobile phone number.