The Supreme Court issued a unanimous decision last week in Abouammo v. United States, reaffirming constitutional limits on criminal venue and restricting prosecutorial discretion in choosing where to try defendants. The 9-0 ruling underscores the importance of holding trials in the district where the alleged crime occurred, a principle rooted in the Constitution and intended to protect defendants from government overreach.

The case involves Ahmad Abouammo, a former Twitter employee who disclosed confidential information to Saudi Arabia in 2015 to aid the country’s crackdown on dissidents. Afterward, Abouammo relocated from Twitter’s San Francisco office to Seattle. In 2018, FBI agents interviewed him at his Seattle residence, where he presented a false document intended to mislead investigators. He was subsequently convicted on multiple charges, including acting as an unregistered foreign agent. Most of those convictions were uncontested in the Supreme Court case.

The legal question before the justices centered on whether Abouammo’s obstruction of justice conviction—arising from falsifying a document in Seattle—could be upheld in a San Francisco court. Lower courts had allowed the conviction to stand, reasoning that the obstruction related to an ongoing investigation in San Francisco.

Justice Elena Kagan, writing for the court, rejected this argument, emphasizing that the Constitution requires criminal trials to occur “in the State where the said Crimes shall have been committed,” as established in 1789, and refined to the “district” level by the Bill of Rights. She noted that this provision was designed to prevent exactly the kind of forum-shopping the government sought, citing historical abuses by British Parliament in trying colonists accused of treason far from their home districts as one of the grievances leading to the American Revolution.

While the modern transportation and communication advances have made venue rules more challenging for prosecutors, the court ruled that such practical concerns do not override the constitutional mandate. Allowing prosecution wherever the effects of a crime extend would enable the government to unfairly select favorable venues, undermining defendants’ rights to have their case heard by impartial juries from the relevant locale.

The decision clarified that, although some complex crimes may be tried in multiple jurisdictions, the obstruction charge under Section 1519 of the federal statutes must be prosecuted in the district where the document falsification actually took place. This interpretation places clear boundaries on venue in criminal cases and reinforces the constitutional safeguards that underpin the nation’s justice system.

The ruling represents rare unanimity on the Court amid a term often marked by contentious, politically charged decisions. It highlights the enduring significance of procedural protections and the Constitution’s geographic limits on prosecutorial power.