Gordon Fielden, the London Regional chairman of the Fire Brigades Union, has been speaking to ITV about the reasons behind the three-year campaign of industrial action the union has been involved in.
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The capital's theatres also generate more searches than those in any other city, according to research by Google.
Union officials are expected to meet next week to plan further stoppages if talks fail to resolve the dispute.
Natalie Sharp and Christine Bicknell appeared in court over an alleged incident at a Lidl superstore in Wallington, south London.