Newspaper headlines: Police warning over 'violent thugs'
There is some respite for Brexit-fatigued readers on Tuesday's front pages, although there's not much to cheer about the story that leads the Daily Express and Daily Mail.
They report a warning from Police Federation chairman Ken Marsh that frontline officers could let thugs go if they don't get help from the public.
Mr Marsh, whose body represents rank-and-file officers, has condemned a "walk on by" culture, in which witnesses film violent scuffles instead of offering assistance.
This is illustrated on the Express's front page with a video still of an offender aiming a "Kung-Fu" kick at a stricken policewoman.
"We all have a responsibility to do our bit in keeping society safe from violent criminals," the paper says.
The Daily Telegraph agrees, arguing: "The police are entitled to the support of the public".
'Victory for victims'
The Sun welcomes the Parole Board's decision to keep the "black cab rapist", John Worboys, in prison - reversing an earlier ruling - and calls it a victory for victims.
"Now throw away the key," the paper demands.
The Daily Mirror believes the case raises serious questions for Justice Secretary David Gauke.
"His initial refusal to intervene when the Parole Board decided to let Warboys go was contemptible inaction," it says, telling him: "Shame on you."
Meanwhile, the saga of Theresa May's bid to convince her Conservative backbenchers that the Brexit agreement is a good one rumbles on.
Foreign Secretary Jeremy Hunt tells the Guardian she has got perhaps the most difficult job of any prime minister or president in the western world at the moment.
Speaking during his visit to Tehran, he tells the paper that Conservative rebels who are trying to oust Mrs May risk "the most appalling chaos" which "could destabilise the country".
Former Tory leader William Hague, in his Telegraph column, says he's never witnessed a more serious crisis. He appeals to the rebels to draw back from plunging Britain into even greater turmoil.
However, under the headline "Brexiteer plotters fail to light the fuse," the same paper reports that Eurosceptics have admitted their attempt to unseat Mrs May has stalled.
Even so, according to Buzzfeed, Mrs May's new Northern Ireland minister, John Penrose, has privately declared her Brexit deal "dead".
He's said to have used the word in a leaked WhatsApp message, sent just hours before he joined the government on Friday evening.
Meanwhile, the Sun notes that Spain and France aren't happy with parts of the deal and that Madrid has said unless there's a rethink on the position of Gibraltar it won't be able to agree to it.
"How can EU members tear up parts of the deal, yet our prime minister insists she can't?" the paper wonders.
On the home front, the Daily Mirror is under fire over its universal credit benefits system.
The paper reports claims by charities that increasing numbers of women are turning to prostitution as a direct result of problems with the new payment system. It calls on the new work and pensions secretary, Amber Rudd, to repair "structural faults" in the system.
In contrast, The Times reveals a fish and chip shop owner in Darlington wrote to the paper to complain that he couldn't find 10 staff for a new branch because the benefits system is making people "workshy".
Frank Suhadolnik says he's never known anything like it in nearly 40 years and adds: "Perhaps universal credit cuts have not yet been severe enough to make many people want to work."
It's not often the Times features a scantily clad woman on its front page, with the caption "Love Bird".
Today's an exception, on account of the news that archaeologists in Pompeii have discovered what's described as an "erotically charged fresco" which had been buried under pumice since the eruption of Vesuvius in AD79.
The colourful artwork depicts the seduction of the Spartan queen Leda, by Zeus, who came disguised as a swan.
Meanwhile, the Mail carries a double-page spread of very healthy looking people who take no medication.... and are all at least in their 80s.
They include the broadcaster and former BBC presenster, David Hamilton, who gave up smoking 40-a-day in his 50s, swims and plays football, and says he's never seen the inside of a hospital.
But he's a mere youth compared to fellow former Radio 2 star, Pete Murray, who says he's never taken a pill, still plays golf and feels 25... but is in fact 93.