In May, District Judge Donald Deason rejected a defense attorney's request to allow Martinez to stay at his parents' Oklahoma City home under strict supervision. At the time, Deason said Martinez had “a strong likelihood” of being convicted.
Police reported Martinez had been a foster parent for 11 years, and the Department of Human Services has said Martinez cared for about 60 children during that time.
Many of the sexual abuse counts involve an adopted son. The victims also include two other adopted sons and a former foster son, prosecutors have alleged.
Martinez resigned from his job at the end of July. His attorneys have said he will be vindicated in court.
A preliminary hearing is scheduled for Monday morning.