The court is continuing to watch the 25 May footage from Officer Peter Chang's bodycam.

Shawanda Hill can be heard commenting on the arrest as she and her fellow passenger Morries Hall watch Floyd struggle from across the street.

Hill remarks: "Now he's going to jail."

"They're still fighting him," she goes on.

"Oh man, what is he doing?"

“Alright I need to leave,” she says from across the street, appearing to grow distressed.

Chang is heard asking for their names and their relationship to Floyd.

Although Hill gives him her name and explains they both wanted to get a ride, Hall says his name is 'William Ricardo' and diverts Chang's questioning by saying Floyd is a security guard at the Salvation Army.

Chang later tells them Floyd may have hurt himself, as Hill exclaims: "They hurt him? Can I just see what y'all did to him? He's on the ground and everything."

Officer Peter Chang tells the court the crowd of bystanders around George Floyd was "very aggressive to the officers" and grew increasingly louder.

He says he was concerned about the safety of the other officers.

The court is now viewing Chang's bodycam footage from the day of the arrest.

Chang arrives when Floyd is handcuffed and sitting on the kerb as he tells Officer Alex Kueng, "I ain't do nothing".

Officer Thomas Lane can be heard asking Chang to keep watch by Floyd's car to make sure Floyd's passengers are not interfering with potential evidence inside the car.

In the video, Shawanda Hill - who we heard from in court moments ago - tells Chang that she is Floyd's ex-girlfriend.

Shawanda Hill steps off the stand and the fast-moving defence now calls its fourth witness of the morning.

He is Peter Chang, a Minneapolis Park Police officer who responded to the scene of Floyd's arrest outside Cup Foods to assist the other responding officers.

Chang says he was the officer who identified Floyd within the police database and monitored the scene. He was never physically involved in detaining Floyd.

The defence has just gotten started making their case today but based on their questioning over the last two weeks, we've got a sense of what they plan to argue.

These are their three main arguments:

1) The force Chauvin used against Floyd was "unattractive but necessary"

2) Other causes, such as drug and health problems, contributed to Floyd’s death

3) The group of "hostile" bystanders that gathered around Chauvin distracted him during the arrest

For a flavour of what could come today, check out lead defence attorney Eric Nelson's opening statement below.

Floyd did a happy dance as he walked back to the car from Cup Foods, Shawanda Hill says.

Hill, who was with Floyd on 25 May, is now being cross-examined by prosecutors.

"At some point back at the car he nodded off?" the prosecutor asks.

"Yes," she responds, adding that she was able to wake him briefly before falling asleep again.

She says she woke him again as the police arrived.

"I'm like 'Floyd, and he's like 'what, what?' And I'm like, 'baby that's the police'," Hill recalls.

She says that as soon as Floyd woke up, the first thing he saw was the officer's gun. Hill says he immediately grew distressed and started pleading with the officers not to kill him.

"Did he seem startled when the officer pulled a gun on him?" the prosecutor asks.

"Very," she says.

Shawanda Hill, an acquaintance of George Floyd who has been compelled by the defence to testify today, is now at the stand.

Hill was in the backseat of the car that Floyd was seated in when store employees first approached to confront him over an alleged counterfeit $20 bill.

She says that when she ran into Floyd inside the Cup Foods, he was "happy, normal, talking, alert".

She says he offered to give her a ride, and that she got a phone call while sitting in the car with Floyd.

While she was on the phone, she says Floyd suddenly fell asleep just before the Cup Foods employees came out to confront him.

Image source, Reuters

Let's take a step back from the court happenings to look at exactly what Chauvin has been accused of.

The former officer has been charged with second-degree unintentional murder, third-degree murder and second-degree manslaughter.

1) Second-degree murder

This is the most serious charge. It will require prosecutors to prove that Chauvin was assaulting Floyd when he caused his death. Chauvin could face up to 40 years in jail if convicted on this count.

2) Third-degree murder

To convict on this charge, the jury must be convinced that Chauvin showed a reckless disregard for human life. The charge carries a maximum sentence of 25 years.

3) Second-degree manslaughter

For the final charge, prosecutors will try to demonstrate that Chauvin took an “unreasonable risk” when he restrained Floyd, putting him at risk of death or serious harm.

With the manslaughter charge, prosecutors do not need prove Chauvin actually caused Floyd’s death. Someone found guilty of this charge may be sentenced to up to 10 years in jail.

Now-retired paramedic Michelle Moseng treated George Floyd on 6 May 2019.

Moseng says it was "quite hard to assess" Floyd because he was "confused" and "agitated".

She says Floyd admitted he had swallowed "seven to nine [opiates] every 20 minutes" and another "when the officer came up" to apprehend him.

She tells prosecutors that he initially denied having medical problems, but then said he suffered from both hypertension and high blood pressure. She says Floyd told her that he had not been taking his prescribed pressure medication.

Her assessment of his vitals indicated he needed to be taken to hospital, but Floyd did not want to go, Moseng says.

When pressed by prosecutors, Moseng says Floyd was sent to hospital only based on vitals, and not because he was showing signs of a stroke or any major health issue.

The defence's second witness is up: she is Michelle Moseng, a retired Hennepin County paramedic.

Like Creighton, Moseng is testifying on the effect opioids may have had on George Floyd during the 6 May 2019 encounter.

And again, Judge Cahill tells the jury the testimony is not meant to be used as evidence about Floyd's character.

Creighton now fields questions from the prosecution.

Prosecutor Erin Eldridge asks Creighton if while he was interacting with Floyd, "he didn't collapse on the ground". He did not.

"And Mr Floyd didn't drop dead while you were interacting with him, correct?" Eldridge continues.

"No," says Creighton.

With that, the defence's first witness is dismissed.

The video from May 2019 shows Officer Creighton repeatedly tell Floyd to place his hands on the dashboard of the car in which he is a passenger.

"Don't shoot me," Floyd says as the officer approaches the car. He unlocks his seatbelt, as the officer had instructed.

Floyd holds his hands in the air and interlocks them behind his head as Creighton continues to order him to put them on the dashboard. The other officer at the scene shouts at the car's occupants to put their hands behind their heads.

Creighton draws his weapon and reaches in to put Floyd's hands on the dashboard himself.

He then pulls Floyd out of the car to be handcuffed, as the other officer at the scene begins yelling to "spit out" something.

During testimony, Creighton says that he never observed Floyd put anything in his mouth.

As Floyd is handcuffed, he is heard saying, "I apologise" to the officer.

Creighton describes what happened during the 6 May 2019 traffic stop.

He says the passenger in the car - George Floyd - was "unresponsive and non-compliant with my commands".

"I then had to physically reach in because I wanted to see his hands. I couldn't see his hands," he says, adding that he drew his service weapon.

Creighton says that he then himself placed the passenger's hands on the dashboard.

"His behaviour was very nervous, anxious," he continues.

The video of that encounter is now being shown in court.

After the prosecution rests, Chauvin's defence team calls their first witness of the trial.

Scott Creighton is a former officer in the Minneapolis Police Department who retired after 28 years.

The judge says the jury is about to see video footage of Floyd from 6 May 2019.

He says the footage is to be reviewed "solely for the limited purpose of showing the effects that opioids may or may not have had on the physical well being of George Floyd".

The footage is "not to be used as evidence of the character of George Floyd," Judge Cahill adds.

Tara McKelvey
BBC News, Brooklyn Center, Minnesota

People have been scrolling through their phones for weeks, wondering when the jurors will reach a verdict.

Many businesses were already closed, trying to keep them safe from violence.

Then Daunte Wright was shot in Brooklyn Center, one of dozens of black residents who have been killed by police over the years. Professional sporting events were cancelled, a nighttime curfew was imposed.

Rich Stanek, who served as sheriff of Hennepin County, where the courthouse is located, tells me that he thinks more business owners should board up their windows, to protect their property.

The protestors who were shouting at officers in front of the Brooklyn Center police department said they were angry at the brutality of police, and frustrated by the way lives have been upended.

Until the jurors reach a decision, the protestors, police and others in town will remain in suspense, wondering about the verdict, and what will happen when it is announced.

After 11 days of witness testimony, the prosecution finished making their case on Monday. Here are some of the key moments:

• The prosecution questioned three people, including expert medical and legal witnesses who conducted independent reviews of Floyd’s arrest
• One of them, cardiologist Dr Jonathan Rich, told the court that, in his opinion, Floyd did not die of a heart attack or drug overdose
• Dr Rich added that Floyd's heart was "exceptionally strong", leading him to conclude that he died because he was restrained "in a life-threatening manner"
• A second expert, law professor Seth Stoughton, said the force used by Chauvin and the other officers apprehending Floyd was "unreasonable, excessive and contrary to generally accepted police practice"
• The state also called Floyd’s younger brother, Philonise Floyd, as a "spark of life witness" to humanise Floyd to the jury
• Philonise gave tearful testimony in which recalled their childhood and how his brother was "a big mama's boy"

You can watch some of Philonise's emotional testimony below.

Judge Peter Cahill is now presiding over day 12 of the Chauvin trial.

Before calling the jury in, the judge ruled that a new police body camera video can be submitted as evidence.

Cahill said the video will be redacted to keep private a portion of the video which shows an officer consulting a suspect database on a computer in his squad car.

The redaction was requested by the prosecution, who said the video includes private information about Floyd.

The jury will be seated shortly and the defence will begin making their case.

Brooklyn Center police have said the fatal shooting of 20-year-old Daunte Wright on Sunday was accidental - but his parents say they cannot accept that explanation.

"I lost my son," Wright's father said in a tearful interview with Good Morning America.

"He is never coming back. I can’t accept that. A mistake? That doesn’t even sound right."

Though the shooting is unrelated to the Chauvin trial, the police killing of another black man has escalated tensions in the city.

Read more about this story here

Image source, Katie Wright

The police shooting of a young black man just 10 miles (16km) from the courthouse where Derek Chauvin's trial is happening has seen tensions rise in the city and across the US.

Daunte Wright was shot while attempting to flee a traffic stop on Sunday, police body camera footage shows.

Yesterday, the police chief of Brooklyn Center - a Minneapolis suburb - said that the officer intended to fire her Taser at Wright instead of her service pistol.

On Monday, President Joe Biden appealed for calm and called on protesters to remain peaceful.

Some 40 people were arrested on Monday night in clashes with police.

Read more:

Dozens arrested in fresh unrest in Minnesota

Welcome back to our live coverage of the trial of ex-officer Derek Chauvin over the death of George Floyd.

It's day 12 of the proceedings and the start of the defence team's time to call witnesses and make their case.

Chauvin's lawyer has previously argued that Floyd's poor health and drug use were the main contributing factors in his death - not Chauvin kneeling on Floyd during the arrest.

It all comes after a second night of protests in the nearby Minneapolis suburb of Brooklyn Center, after 20-year-old Daunte Wright was shot and killed by a police officer.

According to the local police chief, Kim Potter, a 26-year police veteran, meant to fire her Taser rather than her service pistol.

This unrelated police killing of another black man has stoked tensions in Minnesota and across the country.

We'll be sharing updates on both these important cases throughout the day.

That ends our coverage of the day's proceedings in Minnesota.

Today's live page was brought to you by Joshua Nevett, Max Matza and Sam Cabral and edited by Marianna Brady and Ritu Prasad.

We'll be back with more reporting and analysis tomorrow.