E/CN.4/2005/85/Add.2 page 3 already living and working, legally or irregularly, in Iran. The fact that there are not yet clear policy, legislative and administrative measures in place governing legal migration from Afghanistan to Iran contributes greatly to irregular and extralegal cross-border movements and encourages the use of smugglers and traffickers. The Special Rapporteur recommends that the Iranian authorities initiate and encourage more domestic research on and evaluation of the presence and working conditions of foreign migrant workers and their impact on the Iranian economy and society. That would help policy planners to better address issues of legal migration, to identify where foreign labour is genuinely required and, as a corollary, to determine which sectors might require protection against competition from migrant labour.