Lieutenant Samuel Hanney was convicted at Bulford Military Court for neglecting his duties aboard the HMS Sutherland. The Royal Navy officer left an unqualified trainee alone on the bridge of the £143 million vessel during an April 2025 transit to Lyme Bay.
The 21-minute discrepancy on the HMS Sutherland bridge
The legal proceedings centered on a critical lapse in supervision during an early morning watch on April 3, 2025. According to the report, Lieutenant Samuel Hanney, a qualified officer of the watch, abandoned his post to perform a computer task behind a curtain. While Lieutenant Hanney claimed he was away for 14 minutes, computer data from the operational network indicated he was logged in from 04:09am to 04:30am, suggesting a 21-minute absence.
The prosecution, led by Lieutenant Commander Luis Canosa, argued that regardless of whether the absence lasted 14 or 21 minutes, the duration was unacceptable for an officer in charge of a 436-foot frigate.. the Crown alleged that Lieutenant Samuel Hanney failed to maintain a proper lookout and failed to effectively supervise the bridge team while the HMS Sutherland traveled from Plymouth to Lyme Bay, Dorset.
Lieutenant Thomas McNally’s 100-hour qualification gap
The vulnerability of the HMS Sutherland was exacerbated by the inexperience of the officer left in charge. Lieutenant Thomas McNally, the second officer of the watch, was a trainee who had completed only 100 of the 600 hours required for full qualification. As the report says, Lieutenant McNally admitted he felt "nervous and scared" and "froze" when he realized no one was monitoring the windows, though he later acknowledged he should have summoned his superrior back to the lookout.
This incident highlights a precarious reliance on junior personnel during critical operations. The fact that Lieutenant Thomas McNally felt unable to assert authority over a superior officer,even in a dangerous situation, suggests a tension between the Royal Navy's rigid hierarchy and the immediate needs of maritime safety.
The five-minute limit for bridge departures
Testimony from Commander Thomas Boeckx, a fleet navigating officer, established the strict boundaries of Royal Navy watchkeeping. Commander Boeckx testified that officers are generally permitted to be away from the bridge for only two to three minutes, with an absolute maximum limit of five minutes. He clarified that any unintentional absence lasting 14 minutes would be viewed as professional incompetence, while a deliberate absence constitutes negligence.
The use of a curtain on the bridge of the HMS Sutherland is a standard design choice intended to prevent light pollution from obscuring the crew's night vision. However, the court found that Lieutenant Samuel Hanney used this structural feature as a shield to abandon his primary responsibility of overseeing the vessel's safety.
Russian shadow fleet interceptions and the cost of complacency
The negligence on the HMS Sutherland is particularly concerning given the frigate's strategic role. The Type 23 anti-submarine frigate was utilized over the summer to support operations intercepting a Russian shadow fleet vessel off the south coast of Britain. Such high-stakes missions require absolute vigilance, as any lapse in bridge supervision could lead to collisions or tactical failures in contested waters.
This case echoes a broader necessity for discipline within the Royal Navy as it manages aging Type 23 assets in an increasingly volatile geopolitical environment. When a £143 million asset is operated with such a disregard for protocol, the risk extends beyond the ship itself to the success of national security operations.
The pending sentence for Lieutenant Samuel Hanney
While Lieutenant Samuel Hanney has been found guilty of negligent performance of a duty, the court has not yet determined his punishment. It remains unclear whether the Royal Navy will seek a dismissal from service or if the sentencing will focus on retraining and administrative penalties.
Furthermore, the report does not specify if the Royal Navy is conducting a wider audit of watchkeeping practices across other Type 23 frigates to ensure that the "five-minute rule" is being strictly enforced. The silence on whether Lieutenant Thomas McNally will face any disciplinary action for "freezing" also leaves a question regarding how the Navy handles the failures of trainees under poor leadership.
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