DS Grant (formerly a Detective Constable) and her colleague DS Nash were assigned to investigating the murder of Frank Foster in March 2012. The two detectives began their inquiries by questioning Sally Webster, who had found Frank's lifeless body with a bloody head wound on the factory floor of Underworld. When Sally proclaimed her innocence and mentioned that others had greater motives to murder the businessman, they went on to question Carla Connor. Carla admitted to having had a showdown with Frank shortly before his death (which almost resulted in him raping her a second time), but also denied murdering him and claimed to have managed to escape before things could turn violent.