The primary mechanism for controlling work-place behavior in Yugoslavia is workers' self-management. This involves a noncoercive system of behavioral control and modification. The primary purpose of workers' self-management control is to foresee consequences before they arise and identify circumstances that must be changed, improved, abolished, coordinated, and regulated. Should self-management control mechanisms be inadequate for dealing with a behavioral problem, the assistance of other control mechanisms within or outside the work organization may be sought. In contrast to the workers' self-management control in Yugoslavia, "betriebsjustiz" (factory justice) is administered by employers. Factory justice varies in its form according to a company's size, manifesting a continuum from relatively undeveloped to relatively developed forms of organization. Factory justice has a wide range of possible methods of control, which are used with varying frequencies. Patrolling the building is the commonest, followed by gate control, control of cars and lorries, and checking of store cupboards. Preventive measures cover technical measures, appeals, deterrence, reduction of stimuli for crime and deviation from work rules, and measures related to the structure of the company.