Wow. I never expected this. It was a metal outlet box in a manufactured home. The expert said that smaller nails should have been used to attach the box to the stud, not the 16P. We have determined already that the freezer was faulty in that it had a leak and the water somehow allegedly leaked into the outlet causing the fire. I don't know if the outlet was dedicated for the freezer. That's actually a great question. Thanks for all of your replies, they are very helpful and I'll keep you all updated on the outcome.
Alan