Embassies are structured according to the interests that they represent. Since interests of countries differ, the organization of embassies differs. For many embassies, policies are still the care of their activities though high policy is often dealt with by officials at home. For embassies of donor countries in developing countries, development cooperation is in the fore. Some embassies fulfill function. That others do not . for instance, only countries that actively fight narcotics production and trafficking establish drug liaison offices only in countries where there is a particular need. The US embassies in Nigeria and Pakistan have drug liaison offices, for example. Some embassies perform vary special function. The German embassy in Stockholm has a forestry attaché; the US embassy in Berlin has an office of the Internal Revenue Service, the American tax-collecting agency.