A 29-year-old New Brunswick, New Jersey woman was arrested after she allegedly posed as a high school student at New Brunswick High School.

Hyejeong Shin allegedly provided a false birth certificate to enroll as a high school student, News 12 New Jersey reported. Students told the outlet that she attended classes with them for four days. A news release by the New Brunswick Police Department reported that Shin was arrested Tuesday, Jan. 24, and charged for using a false government document, in this case a birth certificate, to verify her age.