evidence: Jon Boutcher becomes the sixth chief constable of the Police Service of Northern Ireland (PSNI) after decades of experience in policing across Great Britain and heading an investigation into one of the murkiest aspects of the Troubles. [...] [ Jon Boutcher appointed next chief constable of PSNIOpens in new window ] [...] He also lost out on the job of PSNI chief constable to Simon Byrne in 2019.