Richard P. Rosenthal is an American author and law enforcement officer. In 2011, he retired as the chief of police of Wellfleet, Massachusetts on Cape Cod, where he served for over 20 years. Prior, he served two decades as an NYPD officer, retiring at the rank of lieutenant.
Rosenthal has written two books on police work, one on "skycops" and one on K-9 units, as well as a novel and a memoir about police undercover work. He is the 100th writer to have been added to Police-Writers.com, a website dedicated to police officers turned authors.
As a rookie cop for the NYPD, he was assigned to work undercover in the JDL; it is the subject of his fourth book.