Use the dialogue below to answer this question
Ada: Wanja, where are you going to in this ungodly hour of the night?
Wanja: I am heading towards my usual joint to enjoy myself.
Ada: Which joint?
Wanja: XYZ Night Club, where I take marijuana and alcoholic beverages, I really want to be high tonight so that when
people see me tomorrow, they will fear and respect me.
Ada: Remember, people who work under the influence of hard drugs and alcoholic beverages are prone to either
psychiatric problems or premature death. Softly young man, imbibe good-natured character, you have the world at
your feet and a destiny to fulfill. Pray you will not be the architect of your own misfortune.
Which of the following governmental agencies is the most capable of controlling the activities of Wanja and his group?