Working conditions, through an endless number of occupational hazards, threaten workers’ safety and health, reduce well-being and working capacity, and thus affect the quality of working life and the economic status of workers and their families. [...] Work-related injuries and diseases have a profound effect on the health of the working population, involving an enormous and unnecessary burden and suffering for workers´ families and communities, and a high economic loss for firms and countries. [...] Thus, mainly due to factors such as the political tradition of each country, the economic activity and level of industrialization, the development of laws and regulations, the political tradition in industrial relations and the level of power and involvement of unions, workers will be more or less exposed to hazardous occupational factors. [...] Also, the lack of official statistics about workers in the informal economy, the scattered spatial distribution of shops and workers and the uniqueness of workplaces such as domestic employment are all drawbacks for research. [...] The working environment in terms of employee-employer relation essentially determines the health of the forced labourers on account of physical and mental trauma due to coercive action including restriction of movement and violence.