Border Patrol Agents must know both immigration law and the proper methods to enforce it. An Agent receives significant law instruction at the training academy. However, both laws and the ways in which they are enforced change over time. Thus, if an Agent has been in the field for a long time, some of the information learned at the training academy will not be current. If an Agent does not maintain knowledge of current law, then the Agent cannot be fully effective in the field. From the information given above, it CANNOT be validly concluded that:
A) an Agent can be fully effective in the field only if the Agent maintains knowledge of current law
B) some individuals who know immigration law also know proper methods to enforce it
C) some of an Agent's academy law training is outdated if the Agent has been in the field a long time
D) an Agent has not maintained knowledge of current law if the Agent cannot be fully effective in the field
E) an Agent has not been in the field for a long time if the Agent's initial academy law training is still current