 
 <prompt> Wetin be the people wey The Commerce and Policing of the River Thames dey talk about? Given the previous question, write a context wey contain the answer. E fit be 1 - 20 sentences. Context: <response>: ```Wit di initial investment of £4,200, di new trial force of di Thames River Police begin wit about 50 men wey dem charge wit policing 33,000 workers for di river trades, of whom Colquhoun claim say 11,000 na known criminals and "on the game." Di force na success afta di first year, and im men don "establish their worth by saving £122,000 worth of cargo and by di rescuing of several lives." Word of dis success spread quick, and di government pass di Marine Police Bill on 28 July 1800, transforming am from a private to public police agency; now di oldest police force for di world. Colquhoun publish book on di experiment, The Commerce and Policing of the River Thames. E find receptive audiences far outside London, and inspire similar forces for other cities, notably, New York City, Dublin, and Sydney.``` 