Mark Portelli

Introduction

Mark Portelli is a former Dorset Police detective inspector who was dismissed without notice and barred from policing after a misconduct panel found he had abused his position during an off-duty drunken incident outside a Bournemouth nightclub. An officer of 21 years who worked in the force’s high harm unit covering domestic violence, stalking and repeat offenders, Portelli was found to have told nightclub door staff he was a police officer and to have used his rank against junior colleagues responding to the scene. A public hearing at Dorset Police headquarters in Winfrith concluded on 9 April 2026 with findings of gross misconduct across three standards of professional behaviour.

Background Information

Portelli served 21 years with Dorset Police, rising to the rank of detective inspector. At the time of the incident he worked in the force’s high harm unit, responsible for domestic violence and stalking cases as well as repeat offenders. He lived in Poole, Dorset.

The Controversy or Incident That Led to Their Cancellation

Adjudicated. The findings in this section come from a police misconduct panel, which found the allegations proven and issued its sanction. These are regulatory findings, not criminal convictions. Portelli’s earlier criminal conviction for using threatening or abusive words or behaviour was overturned on appeal, and he is not a criminal; the panel’s findings concerned his conduct, not a criminal record.

The conduct at issue began on the evening of 30 March 2024 and continued into the early hours of 31 March in Poole Hill, Bournemouth. Portelli had consumed several cocktails and glasses of prosecco at a bottomless brunch event before going to a nightclub, where he was kicked out over an alleged assault inside the venue; he was then arrested outside by colleagues from Dorset Police. Bodycam footage recorded at about 12.45am showed the handcuffed officer angrily shouting out “you stupid f****** c***” and “you stupid f**** t***” in a drunken rant while colleagues said “this isn’t going to help, is it?” and repeatedly called his name in an attempt to calm him.

Portelli was convicted of using threatening or abusive words or behaviour likely to cause harassment, alarm or distress, but the conviction was overturned on appeal in April 2025 after he successfully argued that he had shouted the words at himself for the way he had behaved. A force statement at the time said there would be a subsequent review of the detective’s conduct. The disciplinary proceedings that followed concerned his behaviour towards the nightclub staff and fellow officers over the same incident.

At the misconduct hearing, the panel found that Portelli “had abused his position as a police officer and/or a police inspector and attempted to influence the way night club door staff dealt with him and/or the altercation he had with a woman by telling them he was a police officer”. It also found that he “used his rank in an attempt to influence how his colleagues of lower rank dealt with him and/or the incident that he had been involved in”, and that he spoke to those officers in a “challenging and/or arrogant and/or patronising manner”. The panel determined that he had breached the standards of professional behaviour concerning authority, respect and courtesy, discreditable conduct, and honesty and integrity.

Public Reaction and Consequences

During the hearing, Portelli took “full responsibility” for his behaviour on the night and said he was “embarrassed and ashamed” of the language he had used, accepting that his conduct had made the situation more difficult for his colleagues. Deputy Chief Constable Rachel Farrell said the way Portelli treated members of the public “was unacceptable and so was his conduct as a higher-ranking officer towards his colleagues, who were trying to resolve the incident in a professional manner”, adding: “We remain absolutely committed to ensuring officers whose actions fall below the high standards we expect of them are held to account and we want to send a message that there is no place in our organisation for someone who behaves in this way.” Farrell also commended the attending officers, saying they “showed courage, integrity and clear impartiality”.

The panel found Portelli had committed gross misconduct and dismissed him without notice. He will be placed on the police barred list. Farrell said that whether on or off duty, officers “should adhere to the highest standards of behaviour and integrity at all times”, and that the public “should quite rightly have confidence that when these standards fall below what is expected, robust action will be taken”.

Current Status

Portelli was dismissed without notice following the hearing at Winfrith that concluded on 9 April 2026, and will be added to the police barred list. The barring removes him from the profession after 21 years with Dorset Police. His criminal conviction having been overturned on appeal in April 2025, the dismissal and bar stand as regulatory outcomes rather than criminal penalties.

Impact on Their Career/Life

The end of Portelli’s career closed a 21-year arc that had taken him from frontline detective work to leadership of sensitive domestic violence and stalking investigations. The Daily Mail reported the case under a headline describing a senior domestic violence detective “struck off” after a foul-mouthed outburst following a boozy bottomless brunch, coverage that tied the fall directly to the intoxication and language captured on the bodycam footage. The force’s message after the hearing — that there is “no place in our organisation for someone who behaves in this way” — paired with Portelli’s own admission of embarrassment and shame underlined how a single off-duty night cost him the rank he had held for years and any future in policing.