PC Bradley Corke, 27, died on Saturday, after he was critically injured in Farningham, Kent, on Thursday evening.
He and a colleague, who was reported to be critically ill in hospital at the weekend, were responding to an "immediate" call when their marked police car was involved in the crash.
On Tuesday his family released a statement describing him as a "true gentleman" and a "credit to himself" and "us as parents".
The statement, released through Kent Police, said: "Our beautiful boy, so cruelly taken away from us far too young.
"Bradley was one of the finest young men ever to have walked this earth.
"A credit to himself, to us as parents and to all his family and friends who loved him dearly.
They added that he was "proud" to be a police officer and thanked well-wishers for sending their condolences.
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"It comes as no surprise to us that so many had such a positive experience in his presence," the tribute went on.
"Because that's just Brad - a true gentleman in every situation he encountered.
"Son, we are broken and will probably never recover from your loss, but we hope we can draw strength from all that you are and forever will be.
"We love you son, love you with every ounce of our being. Sleep tight our most beautiful boy."
Kent Police had also previously paid tribute to their officer in a separate statement.
The force said: "Bradley selflessly gave up his life while trying to save the lives of others who were in danger.
"His bravery, dedication, and passion for helping others will not be forgotten."
PC Corke had been an officer with the force since May 2022, serving towns across West Kent.
Neil Mennie, chair of Kent Police Federation, added: "We are all absolutely heartbroken to learn of this news.
"Bradley was a popular colleague who will be much missed and we will be doing all we can to support his family and close colleagues at this time.
"Policing is a family and words cannot describe the pain we are all feeling and how this news will affect us in the days, weeks and months ahead."
She added that his death serves as a reminder of the risks faced by officers in the line of duty.
At the weekend, another member of the public in a second vehicle was also being treated for serious injuries.
Kent Police continued to appeal for information relating to the collision in which he was involved.
Pet owners will pay a maximum of £21 for their first prescription and £12.50 for any other medicines within the same consultation under the changes, after the CMA found some were being overcharged for commonly prescribed medicines from vet practices.
Under the major overhaul of the sector, vets will also have to tell customers about savings they could make by buying medicines online, using those prescriptions.
Average prices of vet services have risen by 63% between 2016 and 2023, which is much faster than general inflation, the report found.
Martin Coleman, chair of the independent inquiry group, said the reforms will make a "real difference to the millions of pet owners who want the best for their pets but struggle to find the practice, treatment and price that meets their needs".
What else is changing?
Practices will be required to publish a comprehensive price list for standard services - including consultations, common procedures, diagnostics, written prescriptions and cremation options.
A comparison site will also be set up to allow pet owners to assess different vet practices more easily.
Vets will have to make it clear whether they are part of a group or an independent business with signs on site and online.
Practices will have to provide a written estimate in advance for any treatment expected to cost £500 or more - plus an itemised bill. Emergencies will be the only exception to this rule.
All of these changes will be legally enforced by 23 September.
Six 'large veterinary practices' singled out
The inquiry found that some issues were "specific" to six large veterinary groups. These are CVS, IVC, Linnaeus, Medivet, Pets at Home and VetPartners.
Coleman said: "We're not shying away from this. Most of them have higher average prices than independent practices, and, in at least three out of five cases, large groups buying up independent practices has led to higher average prices at those practices.
"Some of these groups are earning profits significantly higher
than would be expected in a well-functioning competitive market."
He said that today's changes will mean that large vet groups will be held to account by an independent regulator for the first time.
"Pet owners are left in the dark about prices even when they may be incurring costs of thousands of pounds; many are paying much more for medicines than they need to; pet owners often do not know who they are buying services from; and the large businesses that control the majority of vet practices and provide critical services are not held to account by an independent regulator," he said in his summary.
"And this ultimately impacts pet owners' ability to get the care that their animals need. This must change."
What did the vets say?
We asked each of the large veterinary groups for their thoughts on the reforms, and this is what they told us:
Vets for Pets, which is part of Pets at Home, said it had been a "challenging time" for its teams, but it was pleased to hear the system would be modernised.
A spokesperson said it was the only large group whose average prices were not found to be higher than independent practices.
"Our network of over 600 practice owners are dedicated to providing the best quality and value pet care in the communities they serve," they added.
"This has been a challenging time for dedicated veterinary teams who work tirelessly to provide care to the nation's pets, but we're pleased the process has identified the need to modernise the legislation and regulatory system underpinning the sector."
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CVS, which has hundreds of practices, said in a statement to investors that it thought some of the CMA reforms were not "fully justified", but that it was "comfortable with them" and believes they are "workable".
"We already comply with many remedies and are well advanced in complying with others, with price lists published on our practice websites in late 2025 and 117 CVS UK companion animal practices already jointly branded," it added.
IVC Evidensia, which has more than 2,200 clinics, hospitals and out-of-hours sites, said it welcomed the report and was focused on delivering "outstanding care for animals and excellent support for customers".
Medivet, which has more than 350 clinics across the country, said it was pleased to see that many of its existing practices already aligned with the CMA's findings.
"We further welcome the fact that the CMA's analysis has found that Medivet does not generate excess profits. We look forward to focusing on delivering exceptional care to our patients," a spokesperson added.
The British Veterinary Association, a national body that represents the veterinary profession and was not one of the six large vets named by the CMA, said the changes were a "really positive step" to increasing transparency, but it noted that vets have been dealing with higher costs in recent years.
The group's president Dr Rob Williams said: "Delivering highly skilled veterinary medicine is costly, and whilst we recognise prices have risen sharply in recent years, this is due to a number of factors, including the higher costs all businesses are experiencing - and vet practices are not immune."
The deadline set by Girlguiding follows the organisation's announcement in December that membership would be "restricted to girls and young women", which it described at the time as a "difficult decision".
It was acting after last year's Supreme Court ruling that sex meant biological sex in equality law, it said on Tuesday.
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Since that time, the umbrella organisation said it had undertaken "detailed considerations, expert legal advice and input from senior members, young members", its council and board of trustees.
The deadline gives affected members and their families "time to plan, prepare, access support, and decide when - between now and September - they feel ready to leave".
By that date, any trans girl or trans woman volunteering in a role open to women only, will need to move to a role that is open to all volunteers, or in other words, males or females.
Around 300,000 people aged between four and 18, are part of the organisation, members of the Rainbows, Brownies, Guides and Rangers groups within Girlguiding, as well as around 80,000 volunteers.
It also repeated its previous assertion that it doesn't know how many members and volunteers will be affected by the new gender rules as it doesn't collect gender identity information.
Girlguiding said it is still "committed to standing up for the rights, safety and dignity of girls and women, and to supporting marginalised communities, including LGBTQ+ people, to improve the lives of girls".
Campaign group Trans+ Solidarity Alliance described the news as "heartbreaking for the children and volunteer leaders that hold Girlguiding together".
It said: "Inclusive organisations being bullied into excluding people against their will is a profound failure of this government to live up to its promises to the trans community."
Following the initial announcement last year on the change to membership, a coalition of volunteers and parents argued that refusing a child based on their gender identity "sends a message of rejection" to young people.
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Guiders Against Trans Exclusion (GATE) coordinated demonstrations in various UK cities at the time.
But while some volunteers within Girlguiding have threatened to resign over the issue, others welcomed the change, saying they had expressed safeguarding concerns and were pleased at the new approach.
It was also announced in December that transgender women will be banned from becoming members of the Women's Institute from April.
John McColl died from his injuries a month after the attack in Warrington, Cheshire, on 24 February last year.
The dog attacked him after he wandered onto the driveway of Sean Garner's home in Bardsley Avenue at around 6pm. Armed police officers shot the dog 10 times, Liverpool Crown Court heard.
Prosecutor David Birrell said the dog, called Toretto, "attacked him and it just would not let him go".
"The dog guarded him as if he were its prey. It savaged him," he said.
Sean Garner, 31, of Belle Vale, Liverpool, denies being the owner of a dog causing injury while out of control. He admits possessing the banned male dog and a female of the same breed without an exemption certificate.
Police officers could not get to Mr McColl, so firearms officers attended and shot the dog nine times with a pistol and once with a shotgun, the court heard.
"That is how much ammunition was required to neutralise this large, powerful, savage dog," Mr Birrell said.
An examination of the dog after his death found no food in his stomach, and showed he had begun to eat Mr McColl alive, the court heard.
A second dog, called Malibu, was also shot by police, Mr Birrell said.
Neighbour Christopher Burton told the court he grabbed a walking stick after he was alerted to the attack.
Giving evidence, Mr Burton said: "The dog was chewing on the bloke's face, it was tearing the bloke's face".
"I struck it once with the walking stick," he said, adding that he "just could not get the dog off the bloke".
Geoffrey Chadwick, who was walking his dog nearby at the time, said in a statement to the court that he hit the dog with spirit level.
"I thought the man was dead at first until I heard him ask me for help," he said.
Police Constable Chris Cunliffe, one of the first officers at the scene, said in a statement: "I can only describe the dog's behaviour as if it were guarding its toy it had just ripped apart."
The jury heard Garner avoided police before handing himself in on 26 February.
Mr Birrell said Garner was an "irresponsible" and "reckless" dog owner.
He said Garner was expected to tell the court the dog had been kept securely in a tool shed, but that the dog was kept on a patio, with only a metal gate on a latch securing it.
Text messages showed he contacted family members and "made light of the situation", the prosecutor said.
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Mr Birrell told the court that Garner knew the dog, which he used for breeding, was dangerous and had said he was "missing a few nuts and bolts".
He said the jury would hear evidence that the dog had not been fed for some time.
"The expert will also tell us that the dog appeared to be guarding Mr McColl as if he were its prey or its food," he said.
The jury heard Garner kept the female dog separated from the male, which can make them "frustrated and aggressive".
A jury was sworn in on Tuesday morning. The trial is expected to last between five and seven days.
National security police arrested Book Punch's owner Pong Yat-ming and three female staff on Tuesday, Ming Pao News, the South China Morning Post and TVB reported.
They were arrested for "knowingly selling seditious publications", which carries a maximum penalty of seven years in jail.
Police searched the shop in Sham Shui Po and seized books, including a biography of jailed British media tycoon Jimmy Lai by Mark Clifford, a friend of Mr Lai's and a former non-executive director of Next Digital, the media company owned by Mr Lai.
The 78-year-old billionaire was sentenced last month to 20 years in prison in Hong Kong for sedition, conspiring with foreign forces and conspiring to publish seditious material under the national security law imposed by Beijing in 2020.
A police spokesperson told local media the force "will take actions according to actual circumstances and in accordance with the law".
Mr Clifford, who wrote The Troublemaker: How Jimmy Lai Became A Billionaire, Hong Kong's Greatest Dissident and China's Most Feared Critic, said it was a "cruel irony" that selling a biography of a man "who is in jail for his activities as a journalist, for promoting free expression" would lead to sedition charges.
"It shows how far Hong Kong has fallen from its tradition of free expression and free speech that providing a book could be considered a national security offence," he added.
The author and president of the Committee for Freedom in Hong Kong foundation said threats against bookstores are "not an aberration but part of a continuing crackdown" and are a breach of China's promise to continue to maintain Hong Kongers' freedom after the UK handed Hong Kong back to Beijing in 1997.
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Apple Daily, Mr Lai's now defunct newspaper, was one of a few local papers to initially cover the 2015 disappearance of five booksellers at another bookstore, Causeway Bay Books, known for selling political books banned in mainland China.
It is widely believed they were detained in mainland China, with Guangdong authorities then confirming they had been taken into custody over an "old traffic case".
Their disappearance shocked Hong Kongers, and then British foreign secretary Philip Hammond said it was a "serious breach of the Sino-British Joint Declaration on Hong Kong".
One of the booksellers, Lam Wing-kee, returned to Hong Kong and said he had been held in detention for eight months and been forced into a confession, which made worldwide headlines. Mainland authorities denied the accusations.
A police spokesperson, when asked about the reported arrests, did not comment directly but told Reuters in a statement that police "will take actions according to actual circumstances and in accordance with the law".