A high school student from suburban Kansas City faces two felony counts after a toxin was placed in a science teacher’s drink.

The 15-year-old student from Westwood was being held in the county’s juvenile detention facility after he was charged Friday with two counts of making a criminal threat. A hearing was scheduled for Monday.

One count stems from the student telling others on Jan. 27 that he planned to put a foreign substance in the drink of a Shawnee Mission East High School teacher.

The charge does not allege that the student tried to poison the teacher, although the teacher said the drink tasted odd. Investigators confirmed the presence of a toxic substance in the beverage.

Police declined to identify the substance.

“It was the type of substance that the body would expel,” Prairie Village police Capt. Wes Jordan said. “He experienced upset stomach and nausea at best.”

The other count is because the boy also is accused of threatening violence against a different teacher on Dec. 1.

Johnson County Dist. Atty. Paul Morrison said it was highly disturbing that neither alleged threat was reported immediately to city police.

“It’s a violation of the law not to do so,” he said. “We’re going to be looking into that.”

Shawnee Mission School District spokeswoman Leigh Anne Neal said the district also would look into what happened.

Neal said the teacher reported his suspicion late on Jan. 27, and administrators and district police began investigating Monday.

But Jordan said the Prairie Village police officer assigned to the school as what is called a “school resource officer” did not learn about the alleged incident until late Wednesday.

Police also became aware just this week of the threat made in December, Morrison said.