The diploma thesis is aimed to improvement work of outreach drug workers who works with drug addicted people from foregin countries in Prague. The theoretical part od diploma thesis briefly describes legislative framework linked with use of illicted drugs in the Czech Republic, Drug Strategy of the Czech Republic and definiton of therm street work in the Social Services Act. Next part of the thesis focused to information from lately situation on the open drug market in Prague a nd describes period, since when has been in touch outreach workers and drug addicted people from foregin countries. Thesis further comparing approaches to drug policy in countries of orign drug of drug addicted foreginers at Prague. As well deliberately select in each country important topics for outreach work. The methods used to obtain the necessary information included document analysis, observation, structured interviews and focus group. Information was collected to help in face to face work with drug users. To better understand the environment from which drug users - foreigners come from. Which services can they know from their home country, what services drug users - foreigners can use in the Czech Republic and how to work better with this target group. And also what measures can help Czech outreach workers. Based on...