19 May Day in the life A Day in the Life of a Digital Forensics Expert Witness Digital Forensics, 11. Report Writing, 08. Working with Instructing Parties, 15. Giving Oral Evidence Ryan Shields is a digital forensics expert who has worked in the police and private sector. Here, he explains why he is passionate about using his expertise as an Expert Witness and shares his advice for others considering joining the Expert world.