Refugees (UNHCR), civil society, religious/spiritual representatives) and the right to receive frequent visits from the outside world; 9.2.9. detainees shall be guaranteed effective access to legal advice, assistance and representation of a sufficient quality, and legal aid shall be provided free of charge; 9.2.10. detainees must be able periodically to effectively challenge their detention before a court and decisions regarding detention should be reviewed automatically at regular intervals; 9.2.11. the safety, security and discipline of detainees shall be taken into account in order to maintain the good order of detention centers; 9.2.12. detention center staff and immigration officers shall not use force against detainees except in cases of self-defense or in cases of attempted escape or active physical resistance to a lawful order, and always as a last resort and in a manner proportionate to the situation; 9.2.13. detention center management and staff shall be carefully recruited, provided with appropriate training and operate to the highest professional, ethical and personal standards; 9.2.14. detainees shall have ample opportunity to make requests or complaints to any competent authority and be guaranteed confidentiality when doing so; 9.2.15. independent inspection and monitoring of detention centers and of conditions of detention shall take place; 9.3. consider alternatives to detention and: 9.3.1. provide for a presumption in favor of liberty under national law; 9.3.2. clarify the framework for the implementation of alternatives to detention and incorporate into national law and practice a proper legal institutional framework to ensure that alternatives are considered first, if release or temporary admission is not granted; 54