In the United States, civil forfeiture (also called civil asset forfeiture or civil judicial forfeiture) is a process in which law enforcement officers take assets from people who are suspected of involvement with crime or illegal activity without necessarily charging the owners with wrongdoing.
https://en.wikipedia.org/wiki/Civil_forfeiture_in_the_United_States#Statistics
Translation: "We do know, we just want to scare you instead of tell you because you might like her."