 The Law of Municipal Boundaries forbade the hiring of workers from outside the locality of the owner's holdings.Since not all localities had enough labour for the tasks required, the law had unintended negative consequences, such as sometimes shutting out peasants and renters from the labour market when they needed extra income as pickers.Labour arbitration boards were set up to regulate salaries, contracts and working hours; they were more favourable to workers than employers and thus the latter became hostile to them.