Looking for a book/ book series centered around dirty cops, like the shield/the wire tv shows

[Ryan]

Just finished up watching the shield tv show and it got me wondering if there's any book/book series that is similar to it where the police are corrupt but at the same time good, anti-heroes if you please.

[CBRetriever]

Adrian McKinty has a series of books that fit that criteria especially the Sean Duffy series (set in Ireland),