CRC/C/ROM/CO/4 page 10 information and marketing practices aimed at children as consumers, including of harmful products, and using children as objects of publicity often without consideration of their age, health or other needs. Torture or other cruel, inhuman or degrading treatment or punishment 43. The Committee reiterates that law enforcement officers continue to employ ill-treatment, including threats and physical abuse when coming in contact with children, particularly in the investigation stage of cases. The Committee notes that no mechanism is available to children deprived of liberty in all areas, including psychiatric institutions, with which they can file a complaint regarding their treatment, and which can also serve to inform authorities and gather data. 44. The Committee, reiterating its previous recommendations, urges the State party to: (a) Investigate all allegations of torture and other cruel, inhuman or degrading treatment or punishment of children and make all efforts to fully cooperate with the Special Rapporteur on the question of torture; (b) Ensure the inadmissibility of evidence obtained through the use of torture; (c) Set up a mechanism to which children deprived of liberty in all areas, including psychiatric institutions, can address complaints of torture or other cruel, inhuman or degrading treatment or punishment; (d) Take measures to follow-up on the recommendations made by the Human Rights Committee (CCPR/C/79/Add.111, para. 12); (e) Take immediate measures to stop police violence against all children and challenge the prevailing culture of impunity for such acts; (f) Enhance the implementation of legislation prohibiting all forms of torture and other cruel, inhuman or degrading treatment or punishment and provide care, recovery, reintegration and compensation for victims. Follow-up to the United Nations Study on violence against children 45. With reference to the United Nations Study on violence against children, the Committee recommends that the State party: (a) Take all necessary measures to implement the recommendations of the United Nations Study on violence against children (A/61/299), taking into account the outcome and recommendations of the Regional Consultation for Europe and Central Asia (held in Ljubliana from 5 to 7 July 2005). In particular, the Committee recommends that the State party pay particular attention to the following recommendations: (i) Prohibit all violence against children; (ii) Strengthen national and local commitment and action; (iii) Prioritize prevention;