More than 50 people have faced federal charges in Washington, D.C., since President Donald Trump’s emergency law-and-order surge began last month. Already, prosecutors have dropped at least 11 of those cases, an unusually high collapse rate that judges say is wasting court resources.

The dismissals highlight the risks of Trump’s emergency surge strategy: an unprecedented flood of arrests that has produced headline-grabbing numbers but faltered under judicial scrutiny, with some of the most serious cases — from assaults on federal agents to gun charges — unraveling before they ever reach trial.

On Tuesday, U.S. Magistrate Judge Matthew Sharbaugh dismissed two felony assault cases at the request of U.S. Attorney Jeanine Pirro’s office. He delivered a blunt warning from the bench as he questioned whether prosecutors are making charging decisions before cases are properly investigated and vetted.

“That’s not the way it’s supposed to work, and it has real-world consequences,” Sharbaugh said. “This is becoming a real concern for the court just given the sheer numbers.”