When a Missouri deputy said she fatally shot a man in 2017 because he was reaching for her Taser, the sheriff’s department awarded her a medal of valor. But after the deputy used the same defense for shooting a woman in the back in August, the county prosecutor pressed charges last week and promised to look into the 2017 shooting again.

The deputy, Lauren Michael, a seven-year veteran of the Jackson County Sheriff’s Office, was charged on Wednesday with felony assault and armed criminal action after she shot the woman, who was unarmed, several times in the back in an arrest attempt, according to prosecutors.

Deputy Michael claimed that the woman had Tasered her, but evidence proved otherwise, investigators found.

“Laws that protect law enforcement’s actions are a high hurdle for prosecutors to overcome,” Jean Peters Baker, the Jackson County prosecutor, said in a statement. “We believe, however, this case will meet that high bar.”