Winter D. Martinez is a Supervisory United States Probation Officer in the District of Arizona. Winterís professional career spans over 18 years, working with juveniles and adults at the county and federal levels. In the District of Arizona, Winter has worked as a pre-sentence investigation officer, preparing in-depth investigation reports for Federal Court judges for sentencing purposes. For five years, Winter also worked as a field supervision officer assigned to the Tohono Oíodham Nation (TON). At present, Winter supervises a field supervision unit assigned to the TON and the southern part of Gila River. In addition to her field supervision supervisory duties, Winter also manages the location monitoring unit that serves southern Arizona and Yuma.
Winter serves as an expert on Indian Country matters and currently serves as a member of the Tribal Issues Advisory Group for the United States Sentencing Commission. Winter holds a Masterís Degree in Criminal Justice from the University of Oklahoma. She earned her Bachelorís Degree in Criminal Justice with a minor in Sociology from East Central University in Ada, Oklahoma. Winter is a Native of Oklahoma, representing the Kickapoo and Absentee Shawnee Tribe(s) of Oklahoma (maternal). Winter is an enrolled member of San Ildefonso Pueblo (paternal).