The families of Barnaby Webber, Grace O’Malley-Kumar, and Ian Coates have formally complained about the conduct of Nottinghamshire Police regarding the investigation into Valdo Calocane. Calocane killed the three victims in a series of attacks in June 2023. The families contend that the police force failed to adequately inform them or the public about Calocane’s prior history of stalking and violent behavior, which they argue could have been a critical factor in preventing the tragedy.

In response to these allegations, Nottinghamshire Police confirmed that they have referred the matter to the Independent Office for Police Conduct (IOPC). This move is a standard procedural step when a police force faces allegations of misconduct or failure to perform duties. The IOPC will now determine whether an investigation into the force's actions is warranted. The families have expressed deep frustration, stating that the lack of transparency regarding the perpetrator's background prevented them from understanding the full context of the risks posed by Calocane before the attacks occurred. The police force has stated they are cooperating fully with the referral process, but they have not provided further details on the specific nature of the complaints while the matter is under review by the watchdog.