警务英语求翻译

Four:the traffic police.According to management traffic,vehicles,drivers and pedestrians,and maintain normal traffic order to ensure safe and smooth transportation,handling accidents and traffic violations dealt with,and is responsible for Traffic Accident investigation and so on.
Seven:Fire Police.One of the police public security organs to implement the active system,the organization according to the law,the implementation of fire supervision and conduct fire prevention and fire fighting aspects responsible for crimes such as accidents investigation.