A rooster!
Becuase his peckers on his head
Cook-a-doodle-do!
They're good at planting evidence.
Because he fell asleep on duty.
Turn off all the lights.
A Chihuahua that can draw and gnaw while obeying the law and lying on straw!
Sherlock Ohms That's why his partner is called Wattson...
They both wont be investigated very closely.