A woman accused of having sex with a student while she was a teacher at Sidney Lanier High School has been indicted in the case, according to court records.

Natasha Patronsky, 24, resigned from her position as a Spanish teacher in November about a week before her arrest on a charge of a school employee engaging in a sexual act with a student under the age of 19.

More:Mom's complaint leads to charge against Lanier teacher accused of having sex with different boy

During a December preliminary hearing for Patronsky, a Montgomery police investigator told a judge that a mother, concerned about her son's phone habits, reported suspicious behavior to the school concerning the teacher.

School personnel and a school resource officer interviewed the woman's son about the approximately 30-minute phone calls late in the evening. The boy denied having any relationship with Patronsky, but told officers another student might have.

A formal investigation into the matter began on Nov. 16, according to the investigator.

The second student told police that he and Patronsky had sexual intercourse in her classroom on Nov. 8, the police investigator said during the hearing. Video footage from the Lanier hallway corroborated the student's timeline of when he entered and left Patronsky's classroom, according to the officer.

A review of the student's cellphone revealed text messages with Patronsky in which they talked about statutory rape, according to the investigator.

Four days after the investigation began, Patronsky resigned from the position she'd held for about three months. About a week after her resignation, she was arrested on the charge.

A judge ruled there was enough evidence to continue the case and bound it over for grand jury consideration. She was indicted on the charge late last month, according to court records.

If convicted of the Class B felony, Patronsky could face a maximum of 20 years in prison. She remained free on a $7,500 bond Tuesday, according to court records.

Contact Montgomery Advertiser reporter Kirsten Fiscus at 334-318-1798 or KFiscus@gannett.com. Follow her on Twitter @KDFiscus. Krista Johnson provided reporting.