Reality TV now has its own version of NBC’s “Law & Order.” The father and son producing team of John and Morgan Langley have created “Street Patrol,” a new, ride-along with-law-enforcement show that airs Tuesday nights at 8 p.m. on MyNetworkTV and serves as a natural lead-in to one of their other reality series, “Jail.”

It’s a wall-to-wall evening of crime and punishment. “We wanted to set up a two-hour block where you get to follow the chain of custody from the street to the booking process and beyond,” says Morgan Langley, who produced 13 episodes of the new series.

Langley’s father, John, was a pioneer in reality television. Twenty years ago, during the last writers’ strike, Fox picked up his groundbreaking series, “Cops,” which is still going strong. This time, their idea for “Street Patrol,” which adds music and on-screen crime statistics to the “Cops” format, preceded the strike.

To get the gritty flavor of the streets, the Langleys spent six to eight often harrowing weeks with beat cops all over the country. Unlike “Jail,” which is filmed in a closed, relatively secure environment, “Street Patrol” crews found themselves in some anything-can-happen situations. Morgan Langley remembers one particularly dicey incident in Albuquerque.

“There was a suspect doing about 60 miles an hour down the highway and our cop very bravely steps out into harm’s way to deploy a spike strip that would shred the guy’s tries. But as he’s standing there, the cop comes within two feet of being hit.”

Was the crew in danger, too? “Oh, yeah,” says Langley. “It looked like the guy was swerving at the cop on purpose and our crew was right there with him. They were pretty shook- up.”

P.S. They caught the guy. Which means, in a “Law & Order” universe, the criminal may show up again on camera in a future episode of “Jail.”