Tristan Topley, 31, pictured, denied the offences, which spanned a four-year period, but was found guilty unanimously on seven charges after a five-day trial in the Royal Court.
He was sentenced to six years, to be served consecutively, for each of the two rape charges he faced.
For four counts of assault he was sentenced to an additional three years in prison, and three months, to be served concurrently, on a charge of criminal damage.
Topley has been assessed as a risk of physical, psychological and sexual harm to intimate partners.
‘You behave in a coercive and violent manner with the typical controlling elements of such cases and your record as a repeat offender means you remain a risk,’ said Judge Russell Finch.
‘Normally there is something in a probation report that can be in a defendant’s favour.
‘That is not the case here.’
Topley’s offending took place between March 2020 and April 2024.
The incidents of assault included him punching his victim in the face, throwing a glass ashtray at her, grabbing her by the neck, legs and arms and forcing her face onto the bonnet of a vehicle.
Police said in a statement following the sentencing that the offences were ‘abhorrent’.
‘The impact they have on their victims, and those people around the offender, cannot be overstated. We will always take reports of these kinds of offences incredibly seriously, whether the offences were recent or non-recent.
‘Violence against women and girls is never acceptable, no matter what form it takes, and we will always respond robustly.’
The court was told that following his arrest in September last year, Topley gave no comment answers in interviews with police, and throughout all the court proceedings, including sentencing, maintained that the allegations against him had been fabricated.
Defending, Advocate Paul Lockwood said that due to his client continuing to assert his innocence, he could not comment on the facts and had little to say in mitigation. He said that Topley had experienced anxiety, depression, and alcohol and substance misuse throughout his life.
Topley had relevant previous convictions. He was jailed for nine months in 2017 for indecently assaulting a juvenile girl.
In 2018, while serving the prison sentence he breached his sexual offences prevention order by having direct contact with a girl under 16. He received another 10 months in prison.
Topley’s sentence is the longest prison sentence handed down locally since 2022, when Christopher Beare was sentenced to 19 years for importing £250,000-worth of Class A drugs.
Of the 97 prisoners currently at Les Nicolles, six are serving a sentence of more than 10 years.
Almost 40% of prisoners fall into the sexual offences category.
Local charity Safer said that it was encouraging to see the harm caused by such offences being taken seriously through the justice system.
‘We welcome the court’s recognition of the seriousness and devastating impact of sexual violence and coercive control,’ said Safer CEO Naomi Wright.
‘Cases such as this demonstrate the importance of holding perpetrators accountable and sending a clear message that these forms of abuse will not be tolerated.
‘We know that coming forward, reporting abuse and engaging with the criminal justice process can be an incredibly difficult and courageous step for survivors.’
Safer supports anyone affected by domestic violence, whether they choose to report it to the police or not.
Its specialist team can provide confidential advice, practical support and advocacy to help people understand their options and stay safe.
‘We would encourage anyone experiencing abuse, or anyone concerned about a friend or family member, to seek support,’ said Ms Wright. ‘Help is available, and nobody should have to face abuse alone.’