Manvers Street Police Station is the investigative hub of the murders and linked crimes in Bath: a place where incoming reports, physical evidence, and competing theories converge, and where Peter Diamond repeatedly has to turn a spreading inquiry into specific action. Its incident room gives the investigation a working center, but also makes visible the friction between procedural momentum and Diamond’s refusal to accept an apparently settled answer.

The station as an investigative center

By midday, the incident room for the murder of Sid Towers was receiving information faster than its two civilian computer operators could process it. Reports had begun arriving at eleven from detectives interviewing members of the Bloodhounds; the Scenes of Crime team had supplied preliminary findings; and the autopsy had been scheduled. The crowded flow of information establishes the station not simply as a backdrop but as the place where separate strands of the inquiry are assembled and assessed.

The autopsy arrangements also show how the station’s work depends on decisions made under practical constraints. Peter Diamond said he might not be able to attend and instructed Julie Hargreaves to stand in. She understood that his apparent request was an order. Diamond was known to avoid postmortems, though he did not acknowledge that he fainted at the sight of a dissecting knife. His concealed aversion sits alongside the formal business of the inquiry: even the murder squad’s leader negotiates his way around the demands of police work while ensuring that someone from the team is present.

Interviews and the movement of suspects

The station is also a point of contact for people whose lives have been displaced by the investigation. After lunch, Diamond interviewed Milo Motion for the third time. Motion was temporarily staying at a bed-and-breakfast opposite the station and had come in to ask when he could return to his floating home. The proximity gives the police building an everyday, accessible role as well as a coercive one: Motion comes seeking information about his own circumstances, while Diamond uses the meeting to continue testing his account.

Messages and interviews keep drawing people back into the station’s orbit. At one point, a message asks Diamond to contact PC Hogarth, although the caller’s identity is not immediately clear to him. Later, after other work outside the building, AJ is waiting in an interview room, nursing a fresh bandage on his hand and protesting that he does not know why he has been brought in. Diamond leaves him waiting while a sergeant gets the tape recorder working, then tells him that Jessica Shaw is being brought in too. She had been heading out of Bath in a white Peugeot, but traffic congestion on the London Road has delayed her. The interview room turns the larger investigation into an immediate sequence of arrivals, waits, and confrontations.

Competing judgments inside the incident room

The room’s activity does not guarantee agreement about what the evidence means. When John Wigfull arrives an hour later than usual, he is startled by the bustle and briefly wonders whether the thief has entered the museum during his absence. Diamond tells him that Rupert Darby has died; Wigfull, in turn, reports that he found Rupert’s black beret soon after six thirty. The exchange joins two investigative concerns—the museum theft and the death—while showing how information reaches the station through officers who have been working on different parts of the case.

The incident room later becomes a public forum for the detectives’ competing conclusions. All work is suspended as detectives, filing clerks, and computer operators gather around Diamond and Wigfull. Wigfull presents a ring of four keys: one apparently for a front door, one with a plastic top and probably for a car, and two small, narrow keys of identical shape. Diamond tries each of the two narrow keys in the padlock associated with Milo Motion. Neither turns. The failed comparison is a concrete demonstration before the assembled staff, and it unsettles Wigfull’s confident claim that the keys do not match Milo’s. The station’s collective audience makes the test more than a private exchange between senior officers: the evidence is examined in front of the people helping to conduct the inquiry.

Coordination beyond the building

From the station, Diamond distributes investigative work across Bath and its surroundings rather than keeping the inquiry confined to the incident room. He orders renewed searches for witnesses and further checks on suspects and their household members, focusing on their movements since seven the previous evening. He accepts responsibility for checking Jessica Shaw and the men in her life, while other officers are assigned to interview Miss Chilmark, find Shirley-Ann Miller at the Badgerline offices, check on Bert at the Sports and Leisure Center, speak to Polly Wycherley at Claverton, and revisit Milo Motion at the boatyard. The breadth of these instructions shows how the station converts an unsettled theory into a coordinated set of inquiries.

John Wigfull also uses the station as a base for work on another strand of the case. He is found lingering in the incident room after the civilian clerks have finished for the day, with a sergeant trying to look busy at a screen. He explains that he has returned from the Holburne Museum, where he has been checking that the night squad is alert. On a separate occasion, Wigfull summons Diamond to his office, where Arnold Musgrave, an assistant chief constable, is present. Wigfull says he is wrapping up his part of the case and invites Diamond to join them. Such meetings give the police building a second function: besides gathering evidence, it is where officers present progress and where the hierarchy of the force becomes part of the investigation.

Pressure, procedure, and the case’s direction

The station’s rhythm repeatedly shifts between routine procedure and sudden urgency. Reports accumulate; clerks and operators process information; interview appointments are made; an officer is called back by message; the room empties at the end of a shift and fills again when new developments arrive. When Diamond hears that Julie Hargreaves has been due to interview a suspect for more than two hours without word, he leaves the canteen before John Wigfull can respond. The departure makes the station’s ordinary pauses—food, waiting, unfinished interviews—feel provisional when the case appears to demand immediate attention.

Across these episodes, Manvers Street Police Station is defined less by its architecture than by the work it concentrates. The incident room can accommodate preliminary findings, key tests, staff briefings, and assignments; the office accommodates a senior-level discussion; and the interview room holds suspects while the machinery of questioning is prepared. Yet the building does not settle the case by itself. Its importance lies in making evidence and disagreements available for scrutiny, and in providing the base from which Diamond can challenge premature conclusions and send officers back out to test them.