Former Scottish Lord Advocate Lady Elish Angiolini KC is chair of the eponymous inquiry into the rape and murder of Sarah Everard by serving Met Police officer Wayne Couzens; in this exclusive interview with Policing Insight she talks to James Sweetland about the inquiry’s review of Couzens’ offending history, including historic indecent exposure investigations that were “doomed to fail”, “apathy and disinterest” from investigating officers, and flawed vetting processes that failed to pick up critical red flags.