A federal judge has sentenced an Oregon man to 30 months in prison after he admitted to assaulting a federal immigration officer during protests outside an Immigration and Customs Enforcement facility in Portland. Robert Jacob Hoopes was sentenced Thursday after previously pleading guilty to aggravated assault of a federal employee with a dangerous weapon, according to the U.S. Attorney's Office for the District of Oregon. The case stems from a June 2025 protest outside an ICE facility in Portland. Prosecutors said Hoopes threw a rock that struck an ICE Enforcement and Removal Operations officer in the face, causing what court documents described as a significant injury. Authorities said the impact left the officer bleeding heavily and temporarily impaired his vision. The officer required medical treatment beyond basic first aid following the attack. U.S. Attorney Scott Bradford said the sentence sends a clear message about the consequences of violence against law enforcement officers. "Today's message is clear — violence is not a protest," Bradford said in a statement. "When you cross the line and assault a federal officer, you will be prosecuted." In addition to the 30-month prison term, Hoopes was ordered to serve three years of supervised release after his release from custody and pay more than $8,000 in restitution. The investigation drew attention because federal authorities used facial recognition technology to identify the suspect. According to charging documents, investigators obtained a photograph published by OregonLive.com that allegedly showed the individual involved in the incident. The image was submitted to commercially available facial recognition software, which generated roughly 30 potential matches from publicly available sources. Investigators then reviewed those results and eventually focused on a photograph found on a Reed College SmugMug page titled "Canyon Day April '23." Prosecutors said a distinctive tattoo visible on the individual's forearm matched a tattoo seen on the suspect during the protest, helping authorities confirm Hoopes' identity. The case sparked discussion after Hoopes' father, Tom Hoopes, publicly commented on the charges. Speaking with local station KATU, he described his son as a lifelong Quaker committed to pacifist principles. While acknowledging that his son attended the protest, he declined to discuss the specifics of the allegations. "What his involvement was: I can't speak to that, but he is deeply committed to justice," Tom Hoopes told the station. The sentencing comes as the Justice Department continues pursuing criminal cases involving assaults on federal officers during demonstrations connected to immigration enforcement policies under President Donald Trump's administration. Federal authorities have repeatedly emphasized that while peaceful protest is protected by law, assaults on law enforcement personnel can result in serious criminal penalties.