“…A number of problems arise from this set-up, chiefly perhaps the definition of what constitutes a successful intervention -it is difficult to assess the contribution that an NGO has made to the compliance process, and correspondingly difficult to translate it into traceable model outcomes. Secondly, the translation of qualitative research (interviews, text analysis) and legal norms into mechanisms within the model presents a challenge, which is well-documented and has been tackled for other fields of application [13,14,15].…”