KM KC said DI Ron 'bungling' Cook destroyed/burned lots of exhibits pre-trial but afaik nothing of evidential value was destroyed pre-trial? I disagree DI Cook was bungling. I think given the circumstances and by the standards of the day everything of evidential value was preserved.
Post trial and pre 2002 CoA hearing exhibits were destroyed by Essex police:
In February 1996, the Essex police destroyed many of the original trial exhibits without reference to Jeremy or his legal representatives. It might have been necessary for this court to examine the circumstances in which this had happened. The police officer responsible contended that it was done without his appreciating that there was any on-going legal process that might require the further use of the exhibits. However, during argument it was agreed that the court could protect Jeremy’s position by making assumptions in his favour and that, therefore, it was unnecessary to resolve precisely how this came about.