Four days into his trial Dale Cregan confessed that he did lure PCs Fiona Bone and Nicola Hughes to Hattersley with a fake 999 call, before killing them.
He still denies the murders of Mark and David Short.
Our correspondent Elaine Willcox was one of few journalists in court to hear his admission.
A taxi driver thought he was going to be shot by a masked gunman, the Dale Cregan murder trial has heard.
Dale Cregan has dramatically changed his plea and admitted to the murders of PCs Nicola Hughes and Fiona Bone.
The families of two murdered policewomen have listened to details of the "bloody conclusion" to Dale Cregan's alleged attacks.