Federal Prosecutors Face Judicial Pushback Over Aggressive Use of Military Trespassing Charges at Border

The Trump administration is encountering significant legal resistance as it attempts to bolster border enforcement by charging unauthorized migrants with trespassing on military property. Since last April, federal prosecutors have filed over 4,700 such cases, utilizing a 1909 statute originally intended to protect sensitive defense installations from espionage. While these additional charges rarely result in extended prison time, they have created a substantial backlog in the court system and sparked a wave of litigation regarding the limits of executive authority and criminal intent.

Judges in New Mexico and West Texas have frequently dismissed these charges, arguing that the government fails to prove the defendants possessed the necessary "guilty mind" required for a trespassing conviction. Many migrants, unaware that the land they crossed had been designated as a national defense area, are being caught in a legal strategy that experts describe as both unconventional and unnecessary. Despite the high rate of dismissals—with roughly 60% of cases being dropped or thrown out—prosecutors continue to pursue these charges and appeal adverse rulings. This persistent approach has strained judicial resources and prompted criticism from legal scholars who question the strategic value of applying national security laws to immigration enforcement.