An operation by undercover police ended with 44 people being charged in connection with a street-level prostitution ring in north Harris County. The two-week operation brings the number of prostitution-related arrests in the county to nearly 300 since mid-August, a number that law enforcement officials have said is due to a new focus to stymie demand for prostitution in the region. Precinct 4 Constable Mark Herman heralded his office's work to deter crimes that he said are often connected to prostitution. "Street-level prostitution is the driving force behind much of the demand for human trafficking," Herman said at a news conference Thursday.