The Amsterdam sex crimes case (Dutch: Amsterdamse zedenzaak) is a court case involving Robert Mikelson's abuse of babies in Amsterdam, the Netherlands. The defendant was Roberts Mikelson, dubbed "the Monster of Riga" by the Dutch press, who had worked at several daycare centres in Amsterdam and was accused of abusing 87 children as well as possession, production and distribution of child pornography. Mikelson was found guilty and sentenced to 18 years and 11 months in prison, followed by involuntary commitment.