The district court abused its discretion in denying class certification of a claim that defendant violated California labor laws by requiring employees to remain on premises during rest breaks.  The evidence showed that defendant enforced that policy consistently across all its employees, making the claim suitable for class certification.  However, the district court did not abuse its discretion in denying certification of another claim arising from defendant’s policy of checking employees’ handbags for stolen merchandise as they left work.  That policy was enforced only sporadically, making class certification inappropriate.