Lieutenant Commander John Cursiter, former deputy commander of the nuclear submarine HMS Vanguard, has been convicted by a court martial board of sexually assaulting a junior sailor. The incident occurred after a night out in Plymouth in 2022 , during which the victim was plied with alcohol and given cocaine. According to the court proceedings, the victim woke up in Cursiter's quarters and told a cleaner, "I think I have been raped."

A deputy commander of HMS Vanguard convicted on three charges

According to the source report, the court martial board found Cursiter guilty of sexual assault, false imprisonment, and possession of cocaine. The conviction is notable not only because of Cursiter's rank — he served as deputy commander on one of Britain's most sensitive nuclear submarines — but also because the victim's testimony was corroborated by DNA evidence found in his underwear. Cursiter denied all six offences and claimed the encounter was consensual, but the board rejected his version.

The victim's cry to a cleaner: 'I think I have been raped'

The victim told the court that he was left drunk and unable to remember the events. He said he woke up in the executive officer's bed with their hands touching — but the details that emerged from the cleaner's testimony are even more harrowing. The cleaner reported that the young submariner looked "really rough" and was "completely zoned out." He repeated, "I think I have been raped," and added, "He would not let me go." The victim also tearfully confessed he was contemplating suicide after the incident.

A second accuser from 2013 — and what it suggests about the culture

Another former Royal Navy rating has come forward to say he too was sexually assaulted by Cursiter after a night of heavy drinking in 2013. That allegation was not part of the current charges but was disclosed in court. The pattern — heavy drinking, a junior sailor, an officer with authority — raises uncomfortable questions about the culture of socializing within the Royal Navy's submarine service. As the source notes, the night out in Plymouth involved both officers and submariners, blurring the lines that are supposed to protect junior personnel.

Why the maximum sentence is only six months for a commander

Cursiter faces sentencing in July, and the maximum penalty for the charges is just six montths in prison — a sentence that many will view as disproportionately lenient given the severity of the offences and the rank of the perpetrator. The court martial system operates under different sentencing guidelines than civilian courts, and the cap reflects the fact that these cases are tried under military law.. Still, the victim's impact on his life — including suicidal ideation and lost trust — may not be fully captured by a half-year term.