and when i say wrong, i mean the fact that mr kololo didn't have a fair trial.p the investigation. but the bbc now understands that the senior officer, neil hibberd, is himself being investigated about his role and will be interviewed by the national crime agency. a letter from the met police says they are looking at whether mr hibbert, who has now retired, may have committed a criminal offence or whether there has been misconduct or gross misconduct. mr hibberd's lawyer told the bbc he intends to cooperate with the police watchdog investigation. mr neil hibberd said to me that if it was the last thing that he did, he would find the murderer of david and the people responsible for abducting me. and i believed him, i really believed him. i think they have to take ownership of what they did back in 2011, the team that helped convict mr kololo. an innocent man. mr kololo's lawyers claim mr hibberd didn't disclose that there was forensic testing of evidence which undermined the prosecution's case, and he misled the court by giving selective evidence. his lawyers als