Complex sentence: Researchers Falcone, Wells, and Weisheit describe a historical separation of police models between small towns and larger cities, which tended to function differently with separate hierarchical systems supporting each.
Split into simpler sentences: Researchers Falcone, Wells, & Weisheit's describe a historical separation of police models between small towns and larger cities. The distinction has been defined between rural and urban policing models, which tended to function differently with separate hierarchical systems supporting each.