JEFFERSON CITY, Mo. — A police investigation released Monday shows that a flaw in a Missouri Department of Elementary and Secondary Education webpage had been in place since 2011 and that no one had noticed the flaw until a St. Louis Post-Dispatch journalist pointed out the weakness. The 158-page report also showed that reporter Josh Renaud hadn’t accessed “anything that was not publicly available, nor was he in a place he should not have been,” according to a Missouri Highway Patrol interview with state education department spokeswoman Mallory McGowin. “She said Josh Renaud appears to have on…