Thoroughly explain the process of authenticating both real evidence and demonstrative evidence.

How does authenticating work Im lost at how to answer the process part of this question?

1)How are the processes similar? How are they different? Explain.

2)Specifically, how can the following be authenticated? Explain in detail:

3)Pictorial evidence (photographs, X-rays, videos, and automatic devices)

4)Computer printouts

5)Maps, models, diagrams, charts, and summaries

6)What are the different stages in the evidence chain of custody?

7)Why is the chain of custody so important to successful prosecutions? Explain in detail.