Pictures of young girls were printed on tissue papers, the tissues were then crushed and left on tables of restaurants.
A crushed paper would have an abused effect on the faces of the girls. which will in turn make them think.
Pictures of girls were printed on public telephones . The telephone numbers that consisted of the hot line made for call for action (in this case 1098) were left free of the print.
People who dial the numbers would touch te girl in an inappropriate way which will remind them of any association with any kind of child abuse.