I do believe that reviewing 'old' cases such as these now and again can help the police/social workers/etc. by prompting them to ensure that 1) all suggested recommendations are in place, and 2) that any lessons learned from other cases in the mean time, or new research in general are applied to new cases. Often, regardless of our profession, we can become blase and forget lessons we have already learned - even if they are theoretically enshrined in law or in official practice. New members of the profession come into post without the historic knowledge that led to these practices and - can - ignore them.