You should also be prepared to answer the following questions, according to digital forensic practitioner
Shayne Sherman.

How was the tool/technique/equipment used?

Are there alternative explanations?

Who was it used by?

Has this acquisition or analysis technique been
reliably tested?

Where was the data found?
How was the data validated--either manually or with
a secondary tool?
What are the strengths and weaknesses of the
evidence?

What is the known or potential rate of error of the
technique?
Has this technique been subjected to peer review?
Is this technique generally accepted?

Magnet Forensics - 8 Tips for Presenting Digital Evidence in Court - 7