0_Apprentice
My little brother wants to be a police officer when he gets older.
1_Wizard
That is great! A police officer is also known as an officer, police person, policeman, policewomen, cop, police agent or police employee. 
0_Apprentice
Wow so many different names. Is it hard to become one?
1_Wizard
No it is not too difficult to become, one but it does require a lot of training. Some police may be trained in special duties such as counter-terrorism, surveillance, child protection, VIP protection, civil law enforcement and investigation techniques into major crimes including fraud, murder, and drug trafficking 
0_Apprentice
It seems like a dangerous profession to be in.