passage: Police took away a mother's panic alarm in a 'huge catalogue' of failings just months before she was strangled by her ex partner - who had already killed before. Marc Chivers - who had been convicted of murdering another woman in 1992 - used a dog lead to kill Maria Stubbings at her home in Great Baddow, Essex in December 2008. A four-week inquest into the  death has revealed a series of  failures by Essex Police in 'almost every part of its investigation'. Marc Chivers, right, used a dog lead to kill Maria Stubbings, left, at her home in Great Baddow, Essex in December 2008
  @highlight
  Marc Chivers used a dog lead to murder Maria Stubbings at her home
  @highlight
  He had already been convicted of killing another former partner in 1992
  @highlight
  Police gave Ms Stubbings panic alarm after she reported assault by Chivers
  @highlight
  But they took it away from her when he was arrested the next day and he was later released, inquest told
  @highlight
  Despite repeated 999 calls after the release, police did not go to her house for a week
  @highlight
  Chivers told officers Ms Stubbings had gone away, but her body was found a day later under a pile of clothes in her bedroom
  @highlight
  After inquest, family hit out at Essex Police for 'huge catalogue' of failures
  @highlight
  Police admit they did not protect Ms Stubbings and apologised to her family
  @highlight
  Essex Coroner  is sending a report about the case to the Government
query: 'They assessed Maria as being at high risk of death or serious harm from @placeholder.
entities: Chivers Essex Essex Police Great Baddow Marc Chivers Maria Stubbings Stubbings