Okla. Stat. tit. 19, § 517.1
The governing body of each county may establish a length of time for the county to keep departmental records and authorize the sheriff to properly dispose of or convert to microfilm or a similar medium all records not specifically addressed in other statutes. Such records shall be kept for a minimum of seven (7) years; provided however, if the sheriff is the sole source for such records, the records shall not be destroyed but shall be kept in retrievable form.
Laws 1999, SB 92, c. 5, § 1, eff. November 1, 1999.