Darren Wilson Tells Man 'I'll Lock Your Ass Up' Months Before Brown Killing (VIDEO)

A newly-released video purports to show Missouri police officer Darren Wilson threatening to arrest a man for filming him 10 months before fatally shooting unarmed Ferguson teen Michael Brown.

In a police report first obtained by The Free Thought Project, Wilson responded to the home of 30-year-old Ferguson resident Mike Arman on Oct. 28, 2013.

According to the report, Wilson was responding to complaints of "derelict vehicles being on the property."

Video taken by Arman was uploaded last Friday. Arman told The Free Thought Project he wanted to wait to upload the video until he had left Ferguson and would not face retaliation.

The 15-second video shows Arman asking Wilson for his name. Wilson responds: "If you wanna take a picture of me one more time, I'm gonna lock your ass up."

"Do I not have the right to record?" Arman can be heard asking as Wilson approaches him.

"No, you don't," Wilson responds.

In his own report, Wilson admits that he did not allow Arman to record him, despite the fact that recording police officers is perfectly legal.

More from Wilson's report:

"[Arman] removed his cell phone and stated that he would record the situation. I advised [Arman] that a voice recording would be acceptable, however, that we needed to move forward on the derelict vehicle situation. [Arman] refused to answer any questions or cooperate as he lifted the phone to begin a video recording of myself. [Arman] then stated that I must state my name to him. I advised [Arman] that I would not comply with his demand and to remove the camera from my face...."

When Arman once again asked for Wilson's name, Wilson said Arman was "capable of reading my department issued name plate attached to my uniform."

Immediately after Wilson told Arman to stop recording, he placed the man under arrest for failure to comply, according to the report. That charge was later dropped.

Arman told The Guardian that he was being cordial, but "wanted to safeguard myself by recording what happened."

A grand jury in St. Louis will decide in the coming days whether or not 28-year-old Wilson will be charged in the Aug. 9 shooting death of 18-year-old Brown, a killing which has ignited a firestorm of protests across the country and incidences of police brutality.