NCAA investigators will be on Mississippi State's campus next week, athletic director Larry Templeton has said. ``They'll be interviewing several of our athletes,'' Templeton told the Clarion-Ledger newspaper. ``They'll be following up on self-reported violations over the last 18 months. I would guess they'll be here for a day and a half.'' Templeton also said the NCAA asked permission to inquire about other schools. Templeton declined to name the athletes scheduled to be interviewed by NCAA officials and the sport or sports involved. He said officials didn't request permission to speak to any MSU athletic staff members. Templeton said MSU's athletic department has reported 10 to 12 secondary violations in the past 18 months. ``That's not an unusual number for Mississippi State,'' said Templeton, the school's athletic director since 1987. ``It's probably a little higher than in some places.'' Secondary violations, according to the NCAA manual, are ``isolated or inadvertent in nature ... and provide only a minimal recruiting or competitive advantage.'' Major violations ``provide an extensive recruiting or competitive advantage.''