Complex sentence: Mr Stott focused on the practice of multiple claims, the practice in which a single claimant would sometimes make claims for many different accidents-he also found that some salespeople also made many multiple claims for themselves.
Split into simpler sentences: Mr Stott focused on the practice of multiple claims-the practice in which a single claimant would sometimes make claims for many different accidents. He also found that some salespeople also made many multiple claims for themselves.