After an assistant football coach was arrested on a drug charge, the Kuna School District said it will launch a review of other district hires.

Robby Lee Washington faces two counts of possession of a controlled substance and one count of possession of paraphernalia with intent to use, the Idaho Statesman reported.

Washington no longer works for the district, Superintendent Wendy Johnson said Friday. And in a letter posted on the district’s website, Johnson announced a review of other hires.

“In reviewing this situation, I discovered that Mr. Washington was hired during a short transition in Human Resource and administrative personnel,” Johnson wrote. “Given this, the district will be completing a thorough review of all employees hired during that transition to ensure background checks were completed and will take appropriate action with any findings. In addition, we will be conducting a thorough review of our hiring practices to ensure that this situation does not happen again.”