There's a new top cop in Miami Beach.

Dan Oates is being sworn in today, taking over for the retiring Raymond Martinez.

And he will hit the ground running.

He was at the crime scene of the still-unsolved shooting death of a celebrity chef at Mansion nightclub in South Beach.

He also must deal with the fallout from the deadly tasering of unarmed teen graffiti artist Israel "Reefa" Hernandez.

photo-credit cbs4