The research used in the article is based on surveys of people who have been observed begging in Brussels. The surveys were conducted by researchers from the University of Liege who interviewed a total of 50 beggars. Based on the principles of survey research, it is possible that the results of the survey may not be accurate. The results may be biased if the people who were interviewed were not representative of all beggars in Brussels. Additionally, the results may be inaccurate if the people who were interviewed lied or did not remember the information accurately