The FBI uses Hogan's Alley to

o provide agents a place to stay when they are off duty and visiting FBI headquarters

o provide agents "on-the-ground" training and experience in conducting building-to-building searches

O provide agents an opportunity to locate and arrest actual convicted criminals

teach agents how to read maps

Provide agents "on-the-ground" training and experience in conducting building-to-building searches

Explanation:

The primary role of Hogan was to offer training to the agents. The practice, therefore, involved learning essential tactics that will enable them to handle stressful situations when they were required to use them. For instance, when carrying out investigations, some tactics are needed to get the correct evidence.

This is the reason where the agents were given the training to ensure their studies were successful and valid. When attacks the terrorist the agents needed specific tacts to protect themselves and that exactly Hogan was offering.