ICE detained a Wisconsin state trooper at Dane County Regional Airport in Madison on Thursday, November 5, 2026, even though the 21-year-old officer holds federal work authorisation and is listed on his father's pending asylum application. Trooper Carel Aaron Van Der Merwe came from South Africa with his family when he was 14, and his detention has raised questions about how far immigration enforcement should reach for a sworn state law enforcement officer.

Van Der Merwe was waiting for a domestic flight to New Mexico to visit family when federal agents took him into custody, his attorney, Marc Christopher, said. Christopher said the agents handcuffed the trooper, shackled his legs and drove him to Dodge County Jail, a jail that holds ICE detainees.

Key Points

• ICE agents detained Wisconsin State Patrol Trooper Carel Aaron Van Der Merwe, 21, on Thursday, November 5, 2026, at Dane County Regional Airport in Madison as he waited for a domestic flight to New Mexico to visit family.
• His attorney, Marc Christopher, said agents handcuffed Van Der Merwe, shackled his legs and drove him to Dodge County Jail, which holds ICE detainees.
• Van Der Merwe came from South Africa with his family on visas at 14, is listed on his father's pending asylum application after a seven-year wait, and holds federal work authorisation valid until 2030.
• The Department of Homeland Security said he entered in March 2019 with permission to stay until September 2019 and overstayed, calling it a targeted enforcement operation and saying work authorisation or a pending application "do not confer legal status".
• His lawyers said on Friday, November 6, that he would be released on an order of supervision while his removal case continues; ICE had not confirmed a release.

What Happened

The detention took place during an ordinary domestic journey. Van Der Merwe, a Wisconsin State Patrol trooper at the Tomah post who lives in Onalaska, was at Dane County Regional Airport waiting for a flight to New Mexico to visit family when ICE agents took him into custody in the terminal, with no account suggesting he resisted. The Department of Homeland Security framed it as a deliberate enforcement action rather than a chance encounter, saying he had overstayed the permission granted in March 2019 and would remain in custody pending removal proceedings, although his lawyers said on Friday that a release was imminent.

Background and Context

Van Der Merwe grew up in South Africa; his family travelled to the United States on visas when he was 14. The family later sought asylum, and he is listed on his father's pending application. Seven years on, the family is still waiting for an interview. In the meantime he built a life and a career in Wisconsin, joining the State Patrol on July 13, 2025, and serving at its Tomah post while living in Onalaska. The case turns on the distinction between authorisation to work and legal status: his work authorisation runs until 2030, but the department says the permission granted on entry expired in September 2019, and the pending application does not change the fact of the overstay.

ICE Detains Wisconsin State Trooper: The Paperwork Behind the Arrest

The timeline of Van Der Merwe's immigration history is now the central evidence in the dispute. He arrived in March 2019, aged 14, on a family visa, with permission to stay until September 2019. His family then pursued asylum, and he was listed on his father's application. The interview that would decide the claim has not taken place in the seven years since, leaving the family in limbo.

During that wait, the federal government issued him work authorisation running until 2030, which let him work and join a state law enforcement agency. The Wisconsin State Patrol hired him in July 2025, after standard background checks for a sworn officer, and assigned him to the Tomah post. Nothing in the public record suggests his employer knew of any problem before his arrest. His lawyers said on Friday he would be released on an order of supervision, and Representative Derrick Van Orden's office was also involved.

Reactions and Quotes

The Department of Homeland Security defended the arrest as a targeted enforcement operation and drew a sharp line between work authorisation and legal status. In its account, Van Der Merwe "entered in March 2019 with permission to stay until September 2019 and overstayed his admission", and work authorisation or a pending application "do not confer legal status". The department said he would remain in custody pending removal proceedings.

His attorney, Marc Christopher, described a young officer in uniform handcuffed and shackled at an airport while travelling to see family. The arrest has drawn attention well beyond Wisconsin: a state trooper is a sworn law enforcement officer, and federal agents taking one into custody in public raises questions about how enforcement is prioritised.

Why It Matters

The case tests the boundary between two ideas immigration authorities have long tried to keep separate: permission to work and permission to stay. Van Der Merwe had the first, valid until 2030, but the department says he never had the second after September 2019. If that distinction is applied as strictly as it was at Madison airport, other asylum applicants living and working legally could face the same treatment. It also matters because of his role: troopers enforce the law and depend on public trust, and the public detention of one of their own by a federal agency can strain relations between state and federal law enforcement.

What Happens Next

The immediate question is whether Van Der Merwe is released. His lawyers said on Friday that he would be released on an order of supervision, which would let him return home to Onalaska while his removal case continues, but ICE had not publicly confirmed a release. The removal proceedings will continue, and the asylum application is still waiting for an interview seven years after it was filed.

Frequently Asked Questions

Who is Carel Aaron Van Der Merwe?
He is a 21-year-old Wisconsin State Patrol trooper at the Tomah post, living in Onalaska, Wisconsin. He came from South Africa with his family on visas at 14.

Why did ICE detain him if he has a work permit?
The Department of Homeland Security says he overstayed the permission granted in March 2019, and that work authorisation or a pending asylum application "do not confer legal status".

Where was he detained and where is he being held?
He was detained on Thursday, November 5, 2026, at Dane County Regional Airport in Madison. His attorney said he was taken to Dodge County Jail, which holds ICE detainees.

Will he be released?
His lawyers said on Friday, November 6, that he would be released on an order of supervision while his removal case continues. ICE had not confirmed a release.

What happens to his asylum case?
He is listed on his father's pending asylum application; the family has waited seven years. The removal proceedings will continue.

Related Coverage

Read more on immigration enforcement and federal cases: DOJ charges green card holders with illegal voting in 5 states ahead of midterms and Armed man arrested near White House with rifle and two handguns in stolen car.