Dorset Police officer sacked over WhatsApp group

A SENIOR serving Dorset Police officer has been sacked after posting offensive messages in a WhatsApp group – and failing to challenge the behaviour of colleagues he supervised.

Inspector Nicholas Mantle was found to have breached the standards of professional behaviour following a public misconduct hearing that concluded on Friday, June 2.

He returned on Tuesday (August 15) where the independent panel made their decision to remove him from the organisation. He will now be placed on the barred list administered by the College of Policing, which means he must not be employed or appointed into policing.

The move comes after sanctions were handed to four other officers who attended the hearing to face allegations received by the Force’s Professional Standards Department in July and August 2022.

The allegations related to alleged incidents of bullying and discriminatory conduct by a group of officers, who were serving at the time as part of the Force Support Group (FSG).

The probe found the WhatsApp group contained sexual, pornographic, misogynistic, homophobic, racist, bullying, abusive, offensive and inappropriate messages.

Insp Mantle was a sergeant at the time and had supervisory responsibility for colleagues in the team.

The panel also found insufficient evidence of the officers making verbal racist or homophobic comments in the presence of other officers.

It also did not find evidence that wall art, which was alleged to have been placed in the office but was never recovered, was offensive.

However, the panel found Insp Mantle posted two offensive images in the WhatsApp group, did not leave the group and failed to treat members of the public and colleagues with respect and/or courtesy.

They also ruled he breached the Standards of Professional Behaviour concerning equality and diversity by posting one message and failing to challenge derogatory and offensive behaviour of others he supervised.

PC Mark Jordan-Gill and former officer Paul Perdrisat were also found guilty of gross misconduct at the hearing.

They returned on Tuesday, June 13, where the panel dismissed PC Jordan-Gill with immediate effect and said Mr Perdrisat would have been dismissed had he not already resigned. They were also placed on the barred list.

Serving officers PC Michael Lowther and PC Matthew Young were found guilty of misconduct.

PC Lowther, who challenged the behaviour on the WhatsApp group and left the group, was handed a written warning and PC Young was issued with a final written warning.

He admitted failing to challenge the other officers but had extremely limited participation in the group.

Following the conclusion of the final hearing in respect of Insp Mantle, Temporary Deputy Chief Constable Rachel Farrell, Dorset Police’s lead for professional standards, said: “I would like to thank colleagues in our Counter Corruption Unit for the detailed and thorough investigation they presented to the panel, which enabled them to make the decision they have.

“Inspector Nick Mantle was in a trusted supervisory role when he breached the Standards of Professional Behaviour by not only failing to challenge the derogatory and biased actions of colleagues within the team but also encouraged it by posting two offensive images to the group.

Temporary Deputy Chief Constable Rachel Farrell. Picture: Dorset Police

Temporary Deputy Chief Constable Rachel Farrell. Picture: Dorset Police

“His lack of action in failing to challenge this behaviour and failing to act when PC Lowther called it out is completely unacceptable. This is not the type of leader we wish to have in our force and as this case has shown we will robustly investigate offences and, if appropriate, remove individuals from the organisation.

“The public quite rightly expect the highest standards of behaviour from serving police officers and staff as this is a core component of maintaining the trust of our communities. I know the actions of these officers will have let our communities down.

“It is important to remind the public that this behaviour is not indicative of the overwhelming majority of our staff and teams out delivering quality policing every day to protect people and make Dorset a safe county for everyone.

“We are committed to driving up standards of behaviour within Dorset and ongoing work includes adopting learning across the organisation from this case to stamp out such behaviour, delivering inclusion training to officers and staff, and ensuring our vetting and enhanced vetting obligations are being met and fit for purpose.”

Anyone can report concerns surrounding the conduct of officers to Dorset Police by calling 101 or emailing

Corruption can also be reported online via

Alternatively, members of the public can contact the Independent Office for Police Conduct (IOPC) via, or anonymously through Crimestoppers, on 0800 555 111.

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