A former Metropolitan Police officer has been sentenced to 25 years in prison, with a further eight years on licence, after being convicted of a series of serious sexual offences against women.

Following a 7-week trial held at Guilford Crown Court during March and April 2026, the 33-year-old was found guilty of four charges of rape, two charges of assault by penetration and two charges of sexual assault.

During the trial, the court heard that disturbingly Dion Arnold used his position as a police officer to gain the trust of women before exploiting them and committing sexual offences. As if the case couldn’t get even more horrifying, it was learnt that Arnold during his role as a serving police officer had worked on domestic abuse cases.

The investigation began after the first victim reported Arnold to Surrey Police in March 2025. A forensic examination of his mobile phone then uncovered a list of women's names, which ultimately led investigators to identify three further victims.

Arnold, who also served as an Army Reserve medic, who used his position of trust to target women for his own sexual gratification, committed against four different women between March 2023 and March 2025. However, investigators have said there is no evidence that he met any of the complainants through either his role with the police or the Army.

Sadly, this case has once again highlighted the very real issue of abuse committed by people in positions of trust and the devastating impact it can have on survivors. It is made even more distressing when the person responsible is someone entrusted with protecting the public. In those circumstances, understandably survivors may feel unable to come forward, fearing they won't be believed or that reporting the abuse won't lead to justice.

How many more survivors have to endure this before lessons are learnt?

Police officers are entrusted with protecting the public, preventing crime and supporting victims, so when someone in that position commits sexual offences, the harm extends far beyond the individual survivors; It can undermine confidence in those who are meant to keep us safe and make it even harder for other survivors to come forward, fearing they won't be believed or supported.

Had Arnold met the survivors whilst acting in his role as a police officer, the police may have faced a civil claim for his actions to compensate his survivors.

The abuse and murder of Sarah Everard by serving police officer Wayne Couzens in 2021 prompted a national conversation about police culture, vetting and accountability, with the subsequent inquiry making recommendations aimed at preventing future abuses of power, as so it is beyond deeply concerning that cases involving police officers committing sexual offences continue to come before the courts.

While every case is different, the fact that these offences are still occurring is simply not good enough and a clear sign that lessons are still not being learnt. It strongly suggests there is more work to do to rebuild public trust and strengthen safeguards to ensure warning signs are identified and acted upon.

For survivors, each new case can reinforce fears about reporting abuse, making it all the more important that institutions continue to learn from past failings and demonstrate that no one is above the law.

As such it comes as no surprise that for many survivors, these fears can delay disclosure for months, years or even decades, or possibly sadly never for some. Sadly, these delays can prevent justice being served.

This case serves as a reminder that no one is above the law and that survivors deserve to be listened to with compassion and respect when they choose to come forward.

Abuse by someone in a position of trust

Police officers hold positions of significant responsibility and are expected to protect members of the public. When that trust is abused, the impact can be profound and have entirely devasting, and life long lasting impact as we see too often in our work.

A position of trust can take many forms. This can include roles where there is a pastoral care element such as teachers, sport leaders such as coaches, healthcare professionals including nurses, doctors, dentists, therapists, religious leaders, foster carers and children’s homes to name but a few.

Each experience no matter the job role can affect every aspect of a person's life long after the abuse has ended and have devasting consequences.

It is important to highlight that every survivor's experience is different and that there is no right or wrong time to seek support as this will look differently for different survivors and take varying forms.

Can survivors bring a compensation claim?

A criminal conviction can hold an offender accountable, but it is not the only legal option available to survivors.

In some circumstances, survivors may also be able to pursue a civil compensation claim. Depending on the facts of the case, this could include a claim against the individual responsible or against an organisation that failed to take reasonable steps to protect people from abuse or failed to respond appropriately to concerns.

Many survivors worry that too much time has passed to seek justice. Others may fear they won't be believed, or perhaps feel ashamed or embarrassed about what happened, worry about the impact on their family, or simply find the thought of speaking about their experiences overwhelming. However, it may still be possible to bring a compensation claim, even where the abuse happened many years ago. Every case is different, and specialist legal advice can help you understand your options in a safe, confidential and supportive way. There is no pressure to make any decisions straight away. Reaching out for legal advice is simply about understanding your options, so you can make an informed choice that's right for you.

Confidential legal support for survivors of sexual abuse

At Switalskis, our specialist child abuse and sexual abuse solicitors understand how difficult it can be to speak about experiences of abuse, particularly where the person responsible held a position of trust or authority.

We provide confidential, trauma-informed legal advice to survivors of abuse by police officers and other professionals. If you are considering reporting abuse, exploring a compensation claim or simply want to understand your legal rights, we will believe you and we will listen to you without judgement. Even if you feel unsure, taking the first step to speak to a legal expert will ensure you have all your legal options explained to you, and we ensure to support you at a pace that feels right for you.

No one should have to face the impact of abuse alone. Whenever you are ready, our team is here to help.

Contact Hannah Hodgson at hannah.hodgson@switalskis.com or Danielle Vincent at danielle.vincent@switalskis.com for a non-obligation and entirely confidential discussion to see what legal recourse is available to you.

If you're not ready to take legal action, that's okay too. But at Switalskis we believe in raising awareness that speaking to one of our specialist solicitors is confidential, and re-emphasising the message that even an initial conversation can help you understand your options without any obligation to proceed.