Does the "strip search" story of the 15yr. old constitute discrimination against minors?

Edited after a few answers:
BTW,the reason for the quotation marks the search didn’t involve the student herself.
They still are wrong for 1) not calling the police if they “suspected she was trafficking drugs in our school for several months.” and 2) for not calling the mother themselves instead of “Contrary to what the mother said, we did offer the student the chance to call her mother, but she refused to make the call, ...”

The school board policy (I think) says, in similar words:
“The belongings can be searched but not the student” which is better than the Supreme Court which said:
” ...This may require a search of the student and the student’s belongings.”
So, is there a problem with the Charter not being followed re. discrimination against minor/s?