They often become dependent on their agents and employers, forcing them into a situation of exploitation. Debt bondage (paying for travel expenses) can play a crucial role in reinforcing the dependence of trafficked women and girls on their traffickers, as victims are often required to repay their debt . As a result, some women and girls are likely to be forced into prostitution and therefore fall under the control of criminal networks. Many trafficked women and girls are unaware of their legal rights and have no way to seek redress. It is common for women and children to be trafficked from countries with economic, environmental or political problems to countries or regions with a better quality of life. Poverty, lack of opportunities, political and social instability in communities and countries of origin often push potential migrants to turn to illegal means, including criminal networks. As a result, new human trafficking routes are regularly established and the market for fraudulent travel documents, clandestine transportation and secret border crossings has grown..