 Further criticism has come from the Network of Sex Work Projects.Sweden's "Sex Purchase Act" (), enacted in 1999, makes it illegal to purchase "sexual services" ("sexuell tjänst"), but not to sell them.The rationale for criminalising the purchaser, but not the seller, was stated in the 1997 government proposition, namely that ""...it is unreasonable to also criminalise the one who, at least in most cases, is the weaker party who is exploited by others who want to satisfy their own sexual desires"."