Royal Navy Sailor Accused of Multiple Sexual Assaults on Crewmates
A Royal Navy sailor has been described as a "cancer on the ship" during a court martial hearing where she stands accused of carrying out a series of sexual assaults against both male and female crewmates. Able Seaman Sian Dowsett, aged 25, faces seven counts of sexual assault, with allegations ranging from inappropriate touching to explicit comments directed at colleagues aboard the warship HMS Dauntless.
Allegations of Inappropriate Behaviour
The prosecution presented evidence that Dowsett, who described herself as having "bisexual tendencies" in a service police interview, allegedly groped four fellow sailors—two men and two women—during 2023 and 2024. The incidents are said to have occurred in various locations on the ship, including the galley and living quarters, with behaviour characterised as "opportunistic" and creating a hostile environment.
One male sailor testified that Dowsett slapped his bottom three times in the galley area, leaving him "stunned" and reluctant to report the incidents initially due to concerns about creating tension during a long deployment. He eventually confronted her, warning that he would report further incidents, and later described her as "a bit of a cancer on the ship" that negatively affected both ship morale and his personal relationship.
Detailed Accounts of Alleged Assaults
The court heard specific accounts from multiple alleged victims:
- A petty officer described how Dowsett allegedly cupped her breasts and "caressed her nipple" while making suggestive comments when she was changing between cabins without a top. The officer stated this made her feel "uncomfortable" and was clearly unwanted.
- A male Leading Hand reported that Dowsett made comments comparing coffee preferences to men being "big and strong," then later stroked his arm and repeatedly pinched his nipple while maintaining eye contact during a lesson. He allegedly "froze" during the incident and later reported that Dowsett grabbed his genitals after deployment.
- A female Able Seaman who had only joined the ship three days prior alleged that Dowsett slapped her bottom with such force while she was lying on her bed that it caused stinging pain.
Prosecution and Defence Positions
Prosecutor Graham Coombes presented these accounts to Bulford Military Court in Wiltshire, emphasising the pattern of behaviour that included "nipple pinching to bottom slapping and genital grabbing." The prosecution highlighted how one sailor's girlfriend had warned him to be "careful" around Dowsett after she promised to "look after him" during deployment.
In her defence, Dowsett claims the allegations were "made up" because people on the ship disliked her and rumours were circulating about her behaviour. She maintains her innocence as the four-day trial continues, with the court considering evidence from multiple witnesses about the alleged assaults and their impact on shipboard dynamics.



