• Marines carried out the first known civilian detention in Los Angeles amidst ICE protests.
• The detained individual was identified as Marcos Leao, a 27-year-old Army veteran.
• Leao stated he was treated "very fairly" during the incident.
• Approximately 200 Marines and over 2,000 National Guard members are currently deployed in LA.
• The Posse Comitatus Act typically restricts military involvement in civilian law enforcement.

In a rare domestic deployment, Marines confirmed they detained a civilian at the Wilshire Federal Building in Los Angeles on June 13, marking the first known incident of its kind under the orders of President Donald Trump. The military's involvement came amid widespread protests over ICE immigration raids, as Marines took charge of securing the federal building earlier that day, according to Reuters and HuffPost.

The detained individual, identified as Marcos Leao, an Army veteran, said he crossed a restricted area by mistake while on his way to a Department of Veterans Affairs office. Leao reported that he was treated "very fairly," despite being restrained with zip ties before being handed over to Department of Homeland Security personnel, according to India Times and HuffPost.

Approximately 200 Marines, along with over 2,000 National Guard members, have been deployed to Los Angeles to protect federal properties and personnel, with additional forces expected shortly. While the military is generally restricted from law enforcement duties under the Posse Comitatus Act, the U.S. Northern Command clarified that troops may temporarily detain individuals under specific circumstances. However, any such detention must end once the person can be safely transferred to civilian authorities, as detailed in reports from Reuters and India Times.