Body cam footage of Ryan Wesley Routh’s arrest has surfaced in the aftermath of the suspect’s alleged attempt on Donald Trump‘s life.

Watch the video … Martin County Sheriff’s deputies are seen shouting orders at the alleged would-be shooter after he was pulled over on a Florida highway Sunday.

As Routh comes into frame, he is seen walking backward while holding his shirt high above his head … proving he had no concealed weapons on his person after allegedly attempting to assassinate the former prez on a golf course in West Palm Beach, Florida.

Surrounded by several deputies holding rifles, Routh looks surprisingly calm … surrendering to the deputies on the scene, who cuff him and take him into custody.

The footage confirms what Martin County Sheriff William Snyder shared Monday morning on CNN … where he described Routh’s demeanor as “perplexing” during the stop.

The sheriff added … “His facial affect was so flat. His demeanor was relaxed. I honestly thought it looked like somebody that just left the church picnic and was on his way home.”

Routh became a prime suspect on Sunday after Secret Service clocked an AK-style rifle peeking out from some shrubbery about 400 yards away from where the former prez was playing a round of golf.

An agent responded to the potential threat by shooting into the area where the rifle was spotted … prompting the suspect to drop his weapon and flee in a nearby SUV. The suspect’s gun reportedly was not fired.

Authorities later shared that Routh allegedly left 2 backpacks, a scope, and a GoPro camera at the scene.

The Martin County Sheriff’s department put “all their resources” into locating the suspect after receiving an alert from the Palm Beach County Sheriff’s department … Sheriff Synder confirmed Monday.

It’s a good thing they did, as they were able to apprehend the suspect … who is now in custody — and will remain there until his arraignment on Sept. 30.