An inquiry into the case of Nottingham triple killer Valdo Calocane hears that he brought a hammer into a hospital ward years before he later killed two university students and a caretaker. One report says Calocane told a doctor at a private mental health facility that he had packed the hammer in his rucksack. According to the account, he said he needed the hammer because he wanted to “hang items” in his new home, even though he did not have a new place to live. The reports presented in this set focus on the earlier incident and Calocane’s explanation for carrying the weapon while receiving care. They do not provide further details about the later killings in these excerpts or about any subsequent decisions made at the time. The inquiry evidence discussed here therefore centres on the circumstances surrounding the earlier hospital ward visit and what Calocane reportedly told clinicians regarding the presence of the hammer.