Some more references, colleagues !!!

-Handbook on National Human Rights Plans of Action- Professional Training Series No. 10 www.ohchr.org/english/about/publications/training.htm

Most relevant to your query is certainly this manual (but I am sure you've seen it). It contains a detailed description of the concept of a national action plan and earlier experiences of Human Rights Action Plans, amongst others the cases of Australia, Malawi, Latvia, South Africa are being discussed. A second part describes the different steps for developing a National Action Plan, (preparatory phase, role of national institutions and civil society, consultative mechanisms, development phase, content and structure of the plan). A third part then deals with implementation issues, such as Monitoring and Evaluation of a National Action Plan. Regarding the implementation, UNDP Liberia might also want to prepare itself in advance. For this purpose another manual is certainly useful as well:

-Training Manual on Human Rights Monitoring - Professional Training Series No. 7 www.ohchr.org/english/about/publications/training.htm

It is a very extensive and detailed manual on all issues related to human rights monitoring. It covers all relevant International Human Rights and Humanitarian Law Standards and describes the basic principles of monitoring. Different steps and aspects involved in information gathering, interviewing, visiting people and monitoring are extensively covered. Monitoring is discussed relating on the one hand to different issues such as trial observation, election observation, monitoring of demonstrations, monitoring in armed conflicts and, on the other, to specific categories of rights such as economic,social and cultural rights. For all these topics the Manual shows the applicable legal framework and provides practical information on how to proceed. One part of the Manual is dedicated to followu-up and to reporting.

Under the same addres one can find many more guides and handbooks on specific Human Rights topics, (such as police human rights training, pre-trial detention, human rights reporting etc.)

Other useful material in this context which you might want to have a look at are:
-Manual on Human Rights Monitoring - An introduction for Human Rights Field Officer
www.humanrights.uio.no/nordem/manualen.html

This gives a first overview of the United Nations Human rights system and the international human rights machinery. Contains general information on working in the field for the UN and other IGO's non-governmental organisation, as well as on monitoring. Separate chapters are dedicated to the specific issues of monitoring the administration of justice, trial and election observation.

-Individual Human Rights Complaints - A Handbook for OSCE Field Personnel www.osce.org/documents/odihr/2003/10/1839_en.pdf

Relevant for implementation purposes of national action plans as it is a solid presnetation of human rights from the formal and field OSCE perspectives. Simple explanations, with step-by-step indications for the practical collection of information to corroborate human rights complaints, including a chapter on how to conduct interview and how to investigate allegations.