Tuesday afternoon news briefing: Prime Minister under attack as Supreme Court case into proroguing Parliament begins

Prime Minister's 'improper motive' for suspending Parliament

Boris Johnson has been accused of proroguing Parliament for political reasons at the opening of a Supreme Court case today. Lord Pannick, representing the businesswoman Gina Miller, argued the Prime Minister had been "improper" and wanted to prevent Parliamentary scrutiny of the Government. Click here to watch and follow the Supreme Court prorogation hearing live. Gareth Daviesoutlines the timetable and when a decision will be made. And Adam Cygan explains how the PM can deliver a no-deal Brexit by October 31 legally.

Meanwhile, Xavier Bettel’s humiliating "empty-chairing" of Mr Johnson in Luxembourg yesterday has caused diplomatic unease in Brussels and Berlin. It comes despite a public show of support for the prime minister of Luxembourg from Emmanuel Macron. The British Prime Minister cancelled a planned open-air press conference with Luxembourg’s leader after it became clear a nearby group of up to 75 anti-Brexit protesters would boo and chant whenever he spoke. Here is what European politicians and diplomats are saying about it.

PS - This is worth a look. Read what Telegraph readers have said about David Cameron's return to the public eye ahead of the launch of his political memoirs.

Jodie Chesney murdered in 'pathetic drug turf war', court told

Details of the tragic killing of girl scout Jodie Chesney have emerged in court as four people go on trial for murder. She was a "blameless" bystander who got caught up in a "pathetic turf war" between drug dealers, it was said at the Old Bailey. The 17-year-old was stabbed in the back as she sat on a park bench near St Neot's Road in Romford, East London in March. And the court heard how doctors met paramedics on the way to hospital in a bid to save her life.

Festival row after endangered blue shark paraded through street

A food festival has been condemned for parading an endangered blue sharkthrough the street before cooking and eating it. A video of the event at Plymouth Seafood Festival was posted on the Visit Plymouth Instagram page, before being removed after public outcry. Blue sharks are listed as threatened globally although there are no restrictions on catching them in UK waters. Take a look at the bizarre picture of the shark being carried overhead through the street.

News briefing

• Pc Andrew Harper | Man arrested in connection with police officer's death

• Knife attack | School 'placed into lockdown' after nearby stabbing

• Ben Stokes | Cricketer condemns story in The Sun about family tragedy

• Channel swim | How cancer survivor stayed awake in 54-hour marathon

• Meaty research | Diet 'better for the environment than being vegetarian'

Video: Tourist headbutts gondolier in 'selfie dispute'

A tourist has headbutted and punched a Venetian gondolier in an altercation reportedly over a selfie. Watch the video which shows a man squaring up to the gondolier before headbutting him three times and then punching him.

Comment

• Ambrose Evans-Pritchard | What could happen to oil prices after attack

• Alexandra Phillips | The reason Luxembourg's PM is cross about Brexit

• Patrick O’Flynn | Luxembourg's dirty trick proves we are right to leave EU

• Tom Harris | Why dithering Jeremy Corbyn is right to fear Jo Swinson

• Harry de Quetteville | The reason WeWork is a just a typical tech bet

World news: The one story you must read today...

New party in town | Italy’s newly-formed coalition has been critically undermined barely a week after its creation after Matteo Renzi, a former prime minister, announced he was breaking away from the centre-Left Democratic Party to set up a new grouping. Mr Renzi had pushed hard for the creation of the current government, a shaky alliance between his party and the Five Star Movement, but has now abandoned it just days after it was sworn into office. Here is what the move means for politics and populism in Italy.

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Business and money briefing

The luckiest generation | The debate over whether it is harder for today's young people than it was for their grandparents to get on the housing ladder has raged for years. In the first of a series of pieces asking which generation has had it easier with money, join the discussion in our poll in this story.

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• Stay on top of the markets | Live stocks and shares updates 24 hours a day

Sport briefing

Ben Youngs exclusive | England scrum-half Ben Youngs believes this is the best-prepared World Cup squad he has ever been involved in. Here is what he thinks gives the 31-man party the greatest possible chance of success in Japan.

• Rugby World Cup fixtures | Match dates and full tournament schedule

• Brian O'Driscoll exclusive | Ireland legend on how to win the World Cup

• Michael Vaughan | What needs to happen after England's special summer

And finally...

Europe's unhappiest country | After this week's chastening visit, Boris Johnson may think twice before returning to Luxembourg. But how much do you know about the little shard of Europe? Here are 14 nuggets of information.