Special Unit 2, on UPN
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There's this secret police unit in Chicago that hunts paranormal creatures called "links" and either captures and locks them up, or kills them. Although some links seem to work with SU2, including Carl the Gnome (Danny Woodburn), a thief who is free basically because of the help he lends to the good guys, providing them information and whatnot. But the two main characters are detectives Nick O'Malley and Kate Benson. (Carl and Nick really don't get along.) Anyway, it's a cool and funny show, lasted a couple seasons. Dunno what else to say. If I ever get to see it again, I'll write up a proper review.