SCORES of fast food outlets have launched a legal challenge over payment and employment conditions for its workers, it emerged yesterday. The case is being taken by the newly formed Quick Service Food Alliance (QSFA), which also warned that current legislation would lead to job losses and businesses closures due to labour costs. The QSFA represents 170 businesses in the fast food sector including Subway, Supermacs and McDonald's. It said it was to take a High Court challenge to the rights of the Catering Joint Labour Committee (JLC) to set minimum wages and employment conditions for workers in the catering industry.