Jobcentre staff who work in call centres are taking part in a national day of strike action. It is over what they say are "oppressive working conditions". We have been speaking to Secretary of the Sheffield Branch of the PCS union Rosie Huzzard on the picket line in the city.
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Emma Jesson has the details.
Operation Shimmer is targeting the minority of cyclists in the city who cause a danger to themselves and others by cycling without lights.
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