Cleveland Police have confirmed that Deputy Chief Constable Derek Bonnard has been dismissed from the force for gross misconduct.
In a disciplinary hearing, six counts of gross misconduct were upheld against Derek Bonnard.
These stemmed from an investigation carried out by the Independent Police Complaints Commission after a referral from Cleveland Police Authority in August 2011.
Derek Bonnard continues to deny strenuously any wrongdoing.
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The constituency of Washington and Sunderland West includes the UK's largest car plant, which was opened by Nissan in 1984.
This seat was formed prior to the 2010 General Election, taking in Sunderland city centre and the Ryhope area to the south.
The constituency of Stockton South includes relatively affluent areas like Yarm and Eaglescliffe.