Campaigners are going to stage another demonstration to "show solidarity with detained Foreign National Offenders who are being exploited" at Campsfield House.
Coalition to Close Campsfield will protest outside the Campsfield House Immigration Removal Centre at noon in Kidlington on Saturday.
They will resist what has been called 'slave labour' wages of £1 paid hourly to migrant detainees at the site for routine activities and £1.25, paid for specific project authorised at the site.
In 2019, a High Court judge ruled the pay rate, less than one-seventh of the legal minimum wage, are lawful.
Bill MacKeith, former president of Oxford Trades Union Council, who has worked for more than 35 years to end immigration detention, said detainees should receive "an adequate financial allowance and not be obliged to slave labour which has caused detainees enormous stress, uncertainty and general misery".
The Home Office said it makes "no apologies for investing in facilities that enable us to deport foreign criminals and remove illegal migrants as quickly as possible".
READ MORE: Oxford teenage boy dies after River Thames incident
Campsfield House originally opened as a youth detention centre before it reopened as an immigration detention centre in 1993.
Four years after it reopened, capacity was reduced to 184 when it become male-only. This later rose to 282 beds before its closure in 2018.
During its two decades, 3,600 people passed through the centre with an average stay of 39 days.
In September 2025, the Home Office reported the majority of people who left the detention centre were detained for less than six month.
READ MORE: Man in Oxford hospital after being trampled by cow
GEO Group, an American private prison company, was responsible for running the site, funded by the UK Home Office.
There was more than a decade of issues, including hunger strikes, escapes, protests and two suicides in 2005 and 2011, it was closed in 2018.
Operations were handed over to Mitie, the UK Government's largest provider of immigration detention services, in 2011 before it was closed in 2018.
READ MORE: Potholes cost Oxford taxi firm more than £240,000 a year
The closure was part of a broader initiative to improve the welfare of detainees and was influence by the Shaw Review, which highlighted the inhumane treatment of individuals
The provider was re-awarded a six-year contract valued at £277m to oversee the everyday running new Campsfield Immigration Removal Centre last July.
It holds a mixture of time-served foreign national offenders and immigration offenders while the Home Office prepares to remove detainees from the UK.
Following a refurbishment to make it the first 'green' centre, it reopened with a reduced 160-bed spaces.
Capacity is expected to increase to 400 once phase two of construction is complete.
This is part of the Government's Plan For Change to expand the site of the estate and support the Home Office's ambition to modernise immigration detention facilities and increase removal rates.
