A Louisiana judge will later determine whether Columbia University campus activist Mahmoud Khalil can be released from custody. The judge is expected to decide at the hearing whether the 30-year-old green card holder can be deported or whether he must be freed from detention.

A Louisiana immigration judge is set to decide Friday whether to release Palestinian activist and Columbia University student Mahmoud Khalil one month after he was arrested by federal agents following a deportation order from the Trump administration.

Columbia University student Mahmoud Khalil is being held in an immigration detention facility in Louisiana more than a thousand miles away from where the 30-year-old was arrested in New York in early March. Here’s what to know about the Central Louisiana ICE Processing Center, where he’s being detained while he fights to stay in the U.S.