B'Tselem's footage shows the Palestinian demonstrator identified as Ashraf Abu Rahman, 27 with handcuffs and a blindfold, as a lieutenant colonel holds him by the arm.
Abu Rahman was lightly wounded in the incident which took place on 7th July in Nilin, a West Bank village where regular protests are held against Israel's separation barrier by stone-throwing demonstrators, the group said on Saturday.
The army, which says five border guards, three soldiers and two labourers working on the wall were injured during protests in June, announced the launch of an inquiry after the video was shown on Palestinian television.
But Israeli army spokeswoman Avital Leibovich told the news agency the film raised several questions.
She said it was "clear the images were not filmed in one go," adding, "Where are the missing sequences? What did they contain?"
Leibovich said the man went home with an injured toe and did not file a complaint.
Israel says the barrier is needed to stop potential attackers from infiltrating Israel and Jewish West Bank settlements, but Palestinians say it is a land grab aimed at undermining the viability of their promised state.
The International Court of Justice in 2004 issued a non-binding resolution calling for parts of the barrier inside the West Bank to be torn down and for a halt to construction there.
Source: Reported by DDNEWS
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