Ответ:

1.Under whose supervision do police constables patrol the streets?

-supervised by a sergeant and inspectors

2.from what age is access to the police station open?

-when you are over 18 years old

3.only men are hired?

-no, girls have access too

4.do police constables carry guns with them?

-No

//Нужно было составить вопросы по тексту и ответить на них