barcelona barcelona mayor ask reassurances municipal staff would face legal action lose job help organize oct. referendum catalonia secede spain however region nearly 1,000 mayors already say would go ahead vote despite declare illegal madrid originally offer allow premise across city use poll station barcelona mayor ada colau ask catalan government reassurances civil servants involve would protect office say support right participate protest completely repeat say many time put risk institutions civil servants barcelona deputy mayor gerardo pisarello say friday catalonia parliament vote wednesday hold independence referendum oct. set clash spanish government vow stop say would illegal vote poll northeastern region show support self-rule wan spain economy improve majority catalans want opportunity vote whether split spain friday night 674 catalonia 948 municipal district inform government intention allow city space use vote accord municipal association independence ami video post twitter mayor cerdanyola municipality tear half letter constitutional court warn legal repercussions participate referendum applause crowd watch pro-independence group protest friday outside offices several mayors across catalonia announce would allow municipal space use vote saturday spanish police search offices weekly newspaper town valls search ballot paper accord newspaper la vanguardia friday civil guard police search print company near tarragona reportedly search materials use independence vote spain civil guard police unavailable comment court statement say search relate charge bring public prosecutor relation referendum catalan independence vote divide region 's mayors