基本案情——某煤矿采煤区,今年部分职工劳动合同期满,在办理续签合同时,该区领导要求,凡续签合同的职工必须向工区缴纳500元保勤抵押金,否则将不予出具续签合同证明。为此,职工不服,集体上访,从而引起劳动争议。案例剖析——采区在职工续签劳动合同时,向职工收取500元的保勤抵 Basic case - a coal mining area, some employees this year, the expiration of the labor contract, renewal of the contract for the deal, the district leadership requirements, who renew the contract workers must pay 500 yuan working area to pay the security deposit, or will not be issued Renew the contract certificate. To this end, workers refuse to accept petitioners collectively, which led to labor disputes. Case Analysis - mining area in the workers renewal of the labor contract, workers receive 500 yuan to the arrival of the infield