Former Idaho teacher to change plea in child sexual assault case

August 9, 2018

Rebecca Mason-Cales

MERIDIAN — A former Mountain View High School teacher accused of having a sexual relationship with a student intends to change her not guilty plea at an upcoming court hearing.

Meridian police in February arrested Rebecca Mason-Cales, 26, after they said she had sex with one of her students. She resigned not long after her arrest, according to West Ada School District spokesman Eric Exline. Ada County prosecutors later charged her with six counts of sexual assault of a child. In May, she pleaded not guilty to all six of those charges.

But an Aug. 1 motion filed by Mason-Cales’ attorney wrote she intends to change that plea. The motion “gives notice that a change of plea hearing has been set,” according to the document. The hearing will take place 2 p.m. Aug. 14, according to the motion.

The motion did not indicate how Mason-Cales intends to plea at the hearing.

Meridian police began investigating Mason-Cales after the West Ada School District received an anonymous email claiming the teacher had a possible sexual relationship with a student. As officers investigated, they found evidence of an intimate relationship between Mason-Cales and a 17-year-old male student. They believed the relationship began in August 2017, according to a February news release from the department.

The case had been scheduled for a pre-trial conference Aug. 21. A trial date had been scheduled for Sept. 12. If the trial happens, attorneys have stated they expect it to take three days.

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