Former Dorset Police Constable Mark Haseman has been found guilty of gross misconduct following a public hearing that uncovered multiple serious breaches of professional conduct. The response officer was found to have engaged in sexualised behaviour toward female colleagues, made unwanted contact with a woman from the public, and lied during a misconduct interview.
The hearing, held at Dorset Police Headquarters in Winfrith and concluding on Wednesday, September 24, confirmed several allegations against Haseman. In 2022, he visited a woman’s workplace while on duty and later contacted her through social media without her consent. Additionally, he behaved inappropriately and sexually towards female officers, both on and off duty. When questioned during the misconduct investigation, he denied the true nature of a sexual relationship with another individual.
The panel concluded that Haseman had violated multiple standards of professional behaviour, including Authority, Respect and Courtesy, Discreditable Conduct, Equality and Diversity, and Honesty and Integrity. These breaches constituted gross misconduct.
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Haseman resigned from Dorset Police in August 2025, with his departure finalized on September 19. The misconduct panel stated that, had he remained an active officer, he would have faced immediate dismissal without notice. Furthermore, he has been added to the barred list, permanently preventing him from returning to policing.
Deputy Chief Constable Rachel Farrell emphasized the force’s commitment to maintaining the highest standards of integrity: “Our officers must uphold exemplary behaviour at all times, including off duty. When standards are not met, we act swiftly and decisively. We continue to tackle violence against women and girls through ethical, inclusive policing and a culture that challenges unacceptable behaviour.”
Farrell acknowledged that the vast majority of Dorset Police officers behave professionally and do not engage in the misconduct revealed in this case. She encouraged the public to report any unethical conduct to Dorset Police so it can be investigated thoroughly.
For those wishing to raise concerns, Dorset Police offers multiple reporting channels through their website or email, and the Independent Office for Police Conduct (IOPC) and Crimestoppers also provide avenues for confidential reporting.