Movie about girl arrested in drugs case and she was still 16 years old then the train her to be a shooter and she worked in the agent as a sniper and after many missions she asked her officer to let her go to live a normal life and he didd without the agent knowing
It is either the original French movie “Nikita” (1990):
or its US remake:
“Point of No Return” (1993)
I am sure either of the above is the movie you are looking for. If you agree, then please select my answer as Best Answer by clicking on the “Select” button.