Complex sentence: From autumn 1997 to early 1998 ADI Field Officers worked undercover at Mary Chipperfield Promotions (MCP) in Hampshire, UK; this was the final assignment in an 18-month investigation.
Split into simpler sentences: From autumn 1997 to early 1998 ADI Field Officers worked undercover at Mary Chipperfield Promotions (MCP) in Hampshire, UK. This was the final assignment in an 18-month investigation.