letter from the occupational therapist. >> i can't show the whole letter, but the exact wording, i, tanya payne give permission for the purpose of educational productivity. >> it doesn't say anything about a miracle belt or anything. >> tanya says she thinks other parents would want to know if the same thing was happening to their child. especially when the school system readily admits that the use of such weight belts is common. >> the use of sensory tools within the educational setting is widespread. >> we wanted to find out exactly how widespread this practice really was. we called around to a will the of school systems in the area and most were actually pretty shocked by this practice. d.c., fairfax county, frederick county, prince georges county, and arlington county public schools all say that they do not use these weighted belts. montgomery county public schools said that they do use weighted vests, but only on children with autism. in fredericksburg, kristin fisher, 9news now. >> paul testified at his own trial today that he did approve the script for those automated calls sent out duri