Chilling video footage shows two police officers bumping fists and laughing as they watch footage of an elderly dementia patient being arrested.
Karen Garner, 73, suffered a dislocated shoulder when she was arrested by Colorado officers Austin Hopp and Daria Jalali.
She was handcuffed and pushed against a police car after leaving a Walmart store with $14 (£10) of goods which she had not paid for.
According to reports she was left crying in pain in a cell just metres away as the two officers laughed while watching the bodycam footage.
Hopp, who handcuffed Ms Garner, is heard saying: "Ready for the pop?" - a reference to the pensioner's shoulder.

And he also says: "I can’t believe I threw a 73-year-old on the ground.”
Watching brutal footage of the arrest, Jalali says: "It’s like live TV... Body-cams are my favorite thing to watch, I could watch livestream body-cams all day.”
The officers were seen carrying Ms Garner into a cell, speculating that she was on drugs or "losing it".
The pensioner repeatedly said she was going to pay for the items, and her family say her dementia caused her to leave without paying.


Attorney Sarah Schielke, representing Ms Garner, said in a statement: “This is utterly disgusting.
"These videos cannot be unseen or unheard. I am sorry to have to share them with the public. This will be traumatic and deeply upsetting for everyone to see.
“But as it often goes with bad police departments, it seems this is the only way to make them change.
“They have to be exposed. If I didn’t release this, the Loveland Police’s toxic culture of arrogance and entitlement, along with their horrific abuse of the vulnerable and powerless, would carry on, business as usual.”

According to the Life & Liberty Law Office, Ms Garner did not receive any medical attention for six hours, while she was handcuffed to a bench in a nearby cell.
Hopp has since been put on administrative leave, while Jalali has been reassigned to desk duties while an investigation is carried out.
A third officer seen in the footage has also been put on desk duties.
A criminal investigation, branded a “small, but long overdue, step in the right direction” by the pensioner's family, has been opened.
Charges of theft, obstructing a police officer and resisting arrest were dropped against Ms Garner last year after the district attorney’s office ruled she “appears to be incapable of understanding her surroundings or her actions”.