Mom Calls In Bomb Threat After Daughter Is Barred From School Play In Metro Detroit: Prosecutor

ST. CLAIR SHORES, MI — A woman was sentenced last week for making false bomb threats to a Macomb County high school, according to prosecutors.

On March 12, 2025, prosecutors said 42-year-old Crystal Royster called in two bomb threats to Lake Shore High School in St. Clair Shores after her daughter was not allowed to participate in a school play.

Prosecutors said the school barred her daughter from participating in the play because she was sick and went home earlier that day.

More than 700 people were evacuated from the building when Royster called in the threat, prosecutors said.

Police searched the building and did not find any explosives, prosecutors said.

Royster, of Detroit, pleaded guilty to false report or threat of a bomb (four-year felony) in November. She was sentenced last Thursday to 18 months probation, including 14 days in the Macomb County Jail.

A judge also ordered her to take Class A impulse control class, notify the school before entering school grounds and that she cannot contact any of the victims.

"The defendant was sentenced today for making a false bomb report that resulted in a significant emergency response. While the court determined that probation was the appropriate outcome, her actions nonetheless caused disruption and concern within the community," said Prosecutor Peter J. Lucido.