Insurance claims expert witnesses may opine on insurance policy interpretation, insurance fraud, and related topics. In 8 Great Ways to Get Busted for Auto Insurance Fraud, Insurance.com writes:
8. Buy insurance for a loss you already had.
This is one of the all-time classics. You’ve been meaning to get comprehensive coverage for awhile now, but never got around to it. Unfortunately, a tree branch just fell on your car, breaking the windshield and severely denting the hood. So, you call your auto insurance company and add comprehensive coverage, then file a claim a few days later. The problem? During the investigation, the SIU finds out you started calling body shops to get estimates before you had comprehensive coverage. Not a good situation for you.