Christine Weston will chair the Thames Valley Police Authority for the final time at a full meeting on Friday.
Her departure follows a period of two-and-a-half years in which she has chaired the authority and nine-and-a-half years on the authority as a member.
A new chairman will be elected on Friday.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article