Duncanville ISD conducts criminal background checks on all employees. In addition, the state of Texas now requires a background check on all vendors or contracted service providers who will come in direct contact with students. This includes private tutors or instructors, occupational therapists, school photographers, etc. The district also conducts background checks on all volunteers. We ask all visitors to Duncanville ISD facilities to comply with visitor check-in procedures. We follow these rules and regulations to help ensure the safety of all students.