Volunteer members of the public are being trained to cover for firefighters ahead of planned strike action.
It follows a row over Government proposals to review the current pension scheme. Fire Brigade Union (FBU) members have voted to take action within the next month, in what would be the first national strike of firefighters for more than 10 years.
Some of the new auxiliary firefighters are being trained by Cleveland Fire Brigade.
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Stockton Stages takes place from Thursday, July 20 to Saturday, July 22 in Stockton town centre.
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