In The Blink Of An Eye by Jo Callaghan

DCS Kat Frank, a recently widowed single mother of a final year scholar, is tasked with leading a pilot program pairing human detectives with an Artificial Intelligence Detective Entity (AIDE) named Lock. As they delve into two cold MISPER  cases, Kat's instincts clash with Lock's logical approach. As the cold cases suddenly become active, Kat finds herself relying on both her intuition and Lock's analytical abilities to unravel a dangerous mystery that soon hits close to home.  The concept of the novel as well as the underlying causa for the disappearances, both provide fertile ground for an engaging gumshoe novel.   Though Callaghan explodes these themes, it is done somewhat "tropey",ie two detectives with clashing personalities eventually becoming buddies, who solves the crime whilst essentially being suspended.  Yes, there is definitely more to the novel and it is well-written, with good character development, but the story could have done with a bit more depth.  Still, a very  first novel. 3/5