I think the answer would be E none of the above because all of them are types of dangers law enforcement may have to encounter
the regard that something is held to deserve; the importance, worth, or usefulness of something.
Answer:
The police had never encountered a ransom request before.
Explanation:
The parents of the baby being aviators and working in the aviation sector made them to be popular.But what actually made it to be dubbed "Crime of the century"was because, there was no request of ransom but rather, the child was killed. This made the congress to pass a federal law against kidnapping.