Off to See the Wizard 4
 
It's not clear I suppose but the officer has grey eyes.  I learned while I lived in Scotland as a kid that the local superstition was that grey-eyed people were rough, hard, and dangerous people. That made me terrified of my bus driver who had steel grey eyes and a bit of a temper. But I loved my teacher with her brilliant green eyes because everyone knows green eyes belong to those who have a bit of faerie blood in them and that makes them a bit magical. 

Sorry for the police violence here. I guess we'll see how Liz handles such a situation...