Sandra Bland: Dashcam arrest video shows traffic stop

But family and friends have disputed that finding.

“I’m going to yank you out of here”, Encina can be heard saying in the video. He said, “you can step on out now”, ordering Bland out of the vehicle.

Last week, the FBI and Texas Rangers, a statewide police and investigation agency, said they were looking into Bland’s case.

The routine traffic stop went as expected for the most part, but there was a shift in tone at the 8:40 mark when Encinia came back to Bland’s vehicle. Bland says she was irritated because she was stopped for changing lanes to get out of the path of the trooper’s auto.

The cell phone video that her family says shows her arrest and the Facebook post from Bland in March. He threatens her with a Taser gun, saying “I’m going to drag you out of here…” Then he asked her to get out of her auto.

“Bland began swinging her elbows at me and then kicked my right leg in the shin”. They continued to argue off camera.

The Texas Department of Public Safety says the state trooper who pulled her over planned to give her a written warning, but she became uncooperative and argumentative.

While the footage is fuzzy at times, State Senator Royce West said Tuesday that he concluded she had been threatened with a taser after he reviewed the video, The Washington Post reported. Mathis has said he will treat the death “no differently than a murder investigation”.

Curiously, Bland was asked to exit her Hyundai Azera to “conduct a safe traffic investigation”, according to the affidavit, something most motorists are not asked to do for such a minor infraction.

“We want to understand how it is that this kind of played out and what will end up ultimately being the cause of death”, family attorney Cannon Lambert told ABC News.

The Texas Commission on Jail Standards last week cited the county jail for not providing documents proving that jailers in the past year had undergone training on interacting with inmates who are mentally disabled or potentially suicidal.

The citation, according to AP, showed jailers fell short of requirements to check on inmates every hour.

Demonstrators have protested outside the jail where Ms Bland died and her case has been taken up by activists who say it is the latest example of racial bias and excessive force by USA law enforcement. Bland also notices the person recording her arrest.

The video, recorded on July 10, reveals how Bland, a black woman from the Chicago area, was pulled over by Texas Trooper Brian Encinia, for failing to signal a lane change.

Trooper Brian Encinia arrested Bland for assault on a public servant. On July 13, she was found hanged to death in her cell by a plastic garbage bag.

Encinia has been put on desk duty pending a full investigation, the Texas Department of Public Safety said.

In a press conference Tuesday, District Attorney Mathis elaborated, “It has not been determined at this point that this was a murder”, and said it’s always been the policy of the district attorney’s office to investigate suspicious deaths as potential homicides. Authorities claim that Bland committed suicide in their custody, but family members are skeptical. Mathis said it was “not a model traffic stop… and it was not a model person that was stopped on a traffic stop”.