I think Intelligence itself is a high risk of CR infringement........coz it requires running informants, wiretapping, trying to keep tabs on everyone, and threatening to charge them with critical offenses if they never turn states evidence.
also , you need ability to monitor and interdict your operations.
whats the story? and what are the settings and plot?
Which is the relative pronoun
The answer is a because it’s very detailed and gives you a picture in your mind.