A U.S. citizen and Army veteran who works as a security guard at a California cannabis farm said on Wednesday that U.S. officials arrested him during an immigration raid last week and held him for three days without explanation.

As Judge Maame Ewusi-Mensah Frimpong’s ruling rippled across the region, the federal government requested an immediate stay, pending appeal. Here’s what you need to know.

During an immigration raid on Thursday, a worker fell from a greenhouse at a cannabis farm. A farmworkers union had initially said the worker died on Friday, but a lawyer for the family said the death occurred Saturday afternoon.