More recently, officials have noticed an increase in violence centered on this irregular industry, and have blamed this increase on the illegal immigration of individuals into Amsterdam to participate in the sex industry: The men were said to have used " voodoo " curses on the women to prevent escape and enforce payment of debts. I have a little contempt for them. The movement slowly gained more influence, and during the last decades of the nineteenth century city governments slowly started to abolish regulated prostitution. Also creating nuisance to the surrounding area is seen as a reason to the eventual refusal of the license to lead a sex business. Currently, Cambodia is plagued by problems with child sex tourism.