(CNN) — In a striking reversal by the US government, prosecutors filed a motion Thursday to dismiss federal charges against a woman shot by a Customs and Border Protection agent in Chicago after allegedly ramming into his car , court documents show.

Marimar Martinez, a 30-year-old American citizen, and her co-defendant, Anthony Ruiz – who was driving a different vehicle – had entered not guilty pleas to a federal charge of assaulting, resisting or impeding federal officers.

CNN has reached out to the Department of Justice for comment.

The unprecedented move marks the latest development in a high-profile case that garnered public scrutiny and left a federal judge skeptical of how the investigation was handled.

This is a developing story and will be updated.

CNN’s Whitney Wild and Om

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