Who is baretta based on?

"Beretta" is a fictional character from the 1970s television series "Baretta," played by Robert Blake. The character is a streetwise police detective known for his unorthodox methods and a tough demeanor. "Baretta" was inspired by real-life police officers and their experiences, but it does not depict a specific individual. The show's portrayal of crime and law enforcement aimed to reflect the realities of urban policing during that era.