He’d “pull the switch” on his son’s killer if the law allowed it.

As the career con accused of fatally shooting a young, Queens cop in the face was hit with a murder indictment Thursday that carries a penalty of life with no parole — the slain cop’s dad said there should be a harsher penalty.

“I wish New York had the death penalty, because I would love to pull the switch on him,” retired NYPD Sgt. Raymond Moore, said in a hallway of Queens Supreme Court, after a smirking Demetrius Blackwell pleaded not guilty.

“That animal should be in a cage,” the dad said.

Police Officer Brian Moore — posthumously promoted to Detective First Grade — was just 25 years old and still living with his father when he was shot dead as he and his partner pulled their unmarked car up alongside Blackwell, 35.

Moore’s last words, spoken through his open car window on a Queens Village street, were, “Do you have something in your waist?”

Blackwell — who calls himself “Hell Raiser,” has a long record of violence and was implicated by multiple witnesses — allegedly responded, “Yeah, I got something,” and opened fire before Moore could even unsnap his holster.

“He’s not a career criminal,” defense lawyer David Bart told reporters after court, adding, “He’s not that bad a guy.”

Asked of Blackwell’s nickname, “Hell Raiser,” the lawyer said, “That’s nonsense. He’s known by a lot of people as a sweetheart and a nice guy.”

The lawyer said he will seek some manner of insanity defense, and claimed his client has a history of epilepsy and “evidence of prior psychosis” including bipolar disorder. Blackwell has undergone brain surgery for some condition in the past, the lawyer claimed without elaborating.

“From what I understand [the surgery] changed him dramatically. His whole mental process. Everything about how he reacted to things.”

Queens DA Richard Brown said earlier Thursday that he will fight any psych defense and any attempt by defense lawyers to claim Blackwell did not know he was shooting at a cop.

The indictment against Blackwell includes a charge of attempting to murder Moore’s partner, Police Officer Erik Jansen, who was unharmed.

Jansen will be a star witness should the case go to trial, and did not attend Thursday’s court appearance.

But Moore’s father has vowed to attend every appearance of the accused murderer. He was joined Thursday by close to 100 cops, who crowded the courtroom to support their fallen brother.

Some wore their uniforms; others wore T-shirts that read, “In Memory of Police Officer Brian Moore. End of Watch.” The backs of the shirts read, “Heroes get remembered. Legends never die.”

PBA president Patrick Lynch said after court: “We’re willing to stand between mutts like this and citizens like you to protect your rights.”