Information for Police Dog Hogan at Metronome, Nottingham (Concert). With 8 members in the full line-up and instruments including guitar, accordion, banjo, mandolin, fiddle and trumpet, Police Dog hogan draw their influences from many different wells. You could call it Americana, country-folk, folk-pop or even urban bluegrass, but it's difficult to do justice to the sheer range of styles this band is willing to take on and, if necessary, transform.