Hotwire: Requiem for the Dead Series by Steve Pugh, Warren Ellis

In the near future, the living and the dead share the same space. Most of the "blue lights" are harmless, witless drones… as lost in death as they were in life. Some want revenge. Some want power. Some even want company to join them in the ranks of the departed. Enter Alice Hotwire, Detective Exorcist. She's the best there is at keeping the peace with the Blue Light beat… And, her fellow officers hate her for it. It's a job she doesn't want in a world she doesn't understand... moreIn the near future, the living and the dead share the same space. Most of the "blue lights" are harmless, witless drones… as lost in death as they were in life. Some want revenge. Some want power. Some even want company to join them in the ranks of the departed. Enter Alice Hotwire, Detective Exorcist. She's the best there is at keeping the peace with the Blue Light beat… And, her fellow officers hate her for it. It's a job she doesn't want in a world she doesn't understand. But when a break-in at the maximum security Necropolis sets off a surge of violent hauntings, Alice Hotwire knows she's the only one that can pull the city from the brink of chaos. less

Things aren’t going especially well for Alice Hotwire, who wakes with a broken nose and a surly houseguest. Meanwhile, as city blocks fall to furious rioters, a murdered man staggers into Police City Central, only to discover that his death was only the start of the worst day of his life.

In the near future, the living and the dead share the same space. Most of the "Blue Lights" are harmless, witless drones, as lost in death as they were in life. Some want revenge. Some want power. Some even want company to join them in the ranks of the departed. Enter Alice Hotwire, Detective Exorcist. She's the best there is at keeping the peace on the Blue Light beat, and her fellow officers hate her for it... moreIn the near future, the living and the dead share the same space. Most of the "Blue Lights" are harmless, witless drones, as lost in death as they were in life. Some want revenge. Some want power. Some even want company to join them in the ranks of the departed. Enter Alice Hotwire, Detective Exorcist. She's the best there is at keeping the peace on the Blue Light beat, and her fellow officers hate her for it. It's a job she doesn't want, in a world she doesn't understand - but when a break-in at the Maximum Security Necropolis sets off a surge of violent, brutal hauntings, Alice Hotwire knows she's the only one that can pull the city from the brink of chaos. less