several steps in the process of getting pics or vids admitted into evidence and each state has different rules. the good thing is, most editing software if not all, leaves detectable traces.

i'm not an expert on the topic since most of the litigation i've done for the past 15 years involves contracts and statutes, and most of the evidence was documents (paper). there are entire treatises devoted to digital/electronic evidence and i'm certainly not an authority on the subject. i have twice successfully challenged the admission of digital pics in two cases where the parties promulgating the pics refused or were unable to produce the original digital file which of course has meta-data