From 1981 to 1996, Winter has been a judge at the Vienna Youth Court, where she has undertaken projects to help rehabilitate juveniles with problems of drug addiction and mental disability.
[4] Winter has also worked on projects relating to youth and child soldiers for the United Nations, including in numerous African countries as well as in Latin America.
[6] From 1996 to 2000, she was Consultant for the UN Center for the International Crime Prevention (CICP) at the United Nations in Vienna[7] advising government officials on the implementation on the implementation of the Convention on the Rights of the Child on four continents (e.g. in the Balkans, in the Baltics, in Central European and Asian Countries, in the Maghreb, in East and West Africa and Latin America.)
[8] Winter has contributed to a number of United Nations draft model laws and manuals in the area of juvenile justice.
She has long-standing expertise in the prevention of child abuse and the protection of children against organized crime, including trafficking.