Effective prevention must teach the different types of boundary violations and encourage children and adolescents to get help, to insist on their right to physical and sexual self-determination and to critically question gender role stereotypes. The responsibility of protecting girls and boys against sexual assault and, if this is not possible, to process such incidents to the greatest extent possible lies exclusively with the professional staff.  Prevention of violence, sex education and prevention of sexual assault are indispensable. 2.3.2.2 Barrier-free accessibility Most facilities operated by child and youth welfare organisations are not barrier-free. They are often located in buildings where accessibility is either impossible due to the structural conditions or can be achieved only with unreasonable cost. In some cases, remodelling has occurred as a result of criticism by the NPM. In other cases, the operators have indicated that they will look for another property for the shared accommodation. Even though it is understandable that expensive refurbishing work cannot be funded by the competent authorities for children and youth welfare and protection in the short term, it is at least necessary that when refurbishing does occur or when new buildings are erected, as well as when new leases are signed, to take into consideration that institutions must comply with the provisions of the UN Convention on the Rights of Persons with Disabilities (CRPD).  Facilities operated by child and youth welfare organisations must be fully accessible. 2.3.2.3 Handling of medication The commissions found that in many child and youth welfare facilities, medication is handled negligently. For example, medication was found lying around, medication cabinets were open and accessible to children and adolescents and they also contained expired medication. They also found prescriptions that were up to three years old. The commissions find it problematic that socio-pedagogical staff, which is not one of the health care professions, must nevertheless undertake medical tasks, such as administration of medication, including preparation thereof and organisation of the dispensary. The right to consent to or to refuse a medical treatment is one of the most personal rights of a human being to self-determination. With the coming into force of the Parent and Child Amendment Act (Kindschaftsrechts-Änderungsgesetz) 2001, consent to a medical treatment by minors who have reached the age of discretion was regulated by Section 173 of the Austrian Civil Code; in case of doubt, the legislators presume that 14-year-olds have the necessary cognitive 57 Administration of medication by pedagogic staff