Kaitlin Grant of Elmont was arrested Friday morning. The 23-year-old woman is charged with criminal sexual act and endangering the welfare of a child. She is scheduled to be arraigned later Friday. The name of her attorney was not immediately known.
Nassau County police say the relationship with the Freeport High School student started in November 2011 and ended this month. Police said a member of the victim's family contacted authorities.
The Freeport Schools say Grant had no prior criminal record and passed all background checks; she will no longer work as a substitute.
Freeport Superintendent Kishore Kuncham said the school is cooperating with the investigation.
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