Of course it may take a biographer years to do the research and it is not practical to ask the reader to make a similar commitment of time and effort. But the material could be presented in the form of a structured archive and it would be the task of that biographer to provide maps and index files to this structure. Add a dash of hypertext and we have a plan. An over-simplification perhaps. Two kinds of evidence.
Consequential evidence is different.
One way round the problem. A neat trick. All the consequential evidence has gone and we are dealing only with fixed evidence - things like written witness statements and forensic reports. It would work. But it wouldn't be long before our readers got tired of that trick.