Under the provisions of Qatar's sponsorship law, sponsors have the unilateral power to cancel workers' residency permits, deny workers' ability to change employers, report a worker as "absconded" to police authorities, and deny permission to leave the country. As a result, sponsors may restrict workers' movements and workers may be afraid to report abuses or claim their rights. According to the ITUC, the visa sponsorship system allows the exaction of forced labour by making it difficult for a migrant worker to leave an abusive employer or travel overseas without permission. Qatar also does not maintain wage standards for its immigrant labourers. Qatar commissioned international law firm DLA Piper to produce a report investigating the immigrant labour system. In May 2014 DLA Piper released over 60 recommendations for reforming the kafala system including the abolition of exit visas and the introduction of a minimum wage which Qatar has pledged to implement.