Lou

"Beware the Popeye-esque arm of the law."

- Lou's unlock message.

Lou is a character in the Civil Servants collection. He is unlocked with the S.W.A.T. Van along with Eddie.

Simpsons Wiki Description
Lou is an officer of Springfield Police Department and by far, the most intelligent and competent officer of the Springfield Police. He is under the command of Chief Wiggum, and often takes the time to point out Wiggum's mistakes (often while a crime—or the pursuit of a criminal—is still in progress).
 * Read the full article here at Simpsons Wiki.