Plans for tougher sentences for killers, rapists and grooming gang ringleaders are not simply a bid for votes ahead of the next general election, the Justice Secretary has insisted.

With a nationwide poll expected next year, Prime Minister Rishi Sunak has put a series of criminal justice laws at the heart of the King’s Speech, in an attempt to draw dividing lines with Sir Keir Starmer’s Labour.

The plan will deliver on already-announced proposals for killers convicted of the most horrific murders to expect whole life orders, meaning they will never be released, while rapists and other serious sexual offenders will not be let out early from prison sentences.

Other measures in the speech – being delivered by Charles for the first time as monarch – include giving police the power to enter a property without a warrant to seize stolen goods, such as phones, when they have reasonable proof that a specific stolen item is inside.

That could mean using a device’s GPS tracking to lead police to where it had been stashed.

Alex Chalk, who toured broadcast studios on Tuesday ahead of the King’s address, insisted that the planned changes are part of a longer-term reform project.

“There is a general election in the air, that’s correct,” he told LBC.

“A lot of the things that we are doing are things that we have been thinking about for some time.

“I myself personally, when I wasn’t in government last year, I was speaking at the Conservative Party conference, and a lot of what we’re going to do, they’re the very measures that I was talking about then.

“These are things that people like me and others have been thinking about, have been working out, have been doing the intellectual groundwork on, and we’re now going to bring them into force.”

Ahead of the speech, the Prime Minister said he wants “everyone across the country to have the pride and peace of mind that comes with knowing your community, where you are raising your family and taking your children to school, is safe”.

Senior Tories believe a focus on “bread and butter” Conservative issues will help Mr Sunak as he seeks to overturn Labour’s opinion poll lead.

Mr Sunak’s allies also believe Sir Keir’s record as director of public prosecutions – something the Labour leader has often highlighted as a positive – could also be a point of weakness.

One No 10 insider pointed at his 2010 support for a US-style system of first and second degree murder charges, the latter of which might not have attracted a mandatory life term.

The new Criminal Justice Bill will include widely trailed measures to ensure reasonable force can be used to make offenders appear in the dock to face their victims for sentencing, or risk having up to two years added to their jail term.

It will also make being in a grooming gang an aggravating feature for sentencing, meaning tougher punishments for ringleaders and members.

The Sentencing Bill will mean a whole life order can be handed down in the worst cases of murder, with judges having discretion to impose a shorter tariff only in exceptional circumstances.

The legislation will also ensure that rapists and serious sexual offenders serve the whole of their sentence behind bars, without being released early on licence.

A Victims and Prisoners Bill will give ministers the power to block parole for the worst offenders and ban them from marrying in prison.

The promise of longer sentences comes as the prison system is under strain, with ministers forced to act last month to free up space by letting out some less serious offenders up to 18 days early.

The Government has promised the largest prison building programme in 100 years to create more than 20,000 more places.

Shadow justice secretary Shabana Mahmood said: “What further proof do we need that the Tories have completely run out of ideas than witnessing them using the most significant event in the parliamentary calendar to simply repackage ideas they’ve announced multiple times.

“The Government should be focusing on delivering the prison places we actually need to keep criminals behind bars.”

The King, who has a longstanding interest in environmental matters, will also announce his Government’s plan for a new law to mandate annual oil and gas licensing in the North Sea – another issue on which the Tories hope to fight a political battle with Labour.

The speech could also introduce a law that would stop children who turn 14 this year and those younger from ever legally buying cigarettes or tobacco in England, as promised by Mr Sunak at the Tory conference.

A report in The Times suggested new legislation for driverless vehicles will clear the way for buses, grocery deliveries and farm machinery to operate autonomously by the end of the decade.

A source told the newspaper: “It will pave the way for the commercial use of autonomous technology, which will have huge benefits for consumers, reduce road deaths and help decarbonise transport.”

Plans to “phase out” leaseholds will be in the King’s Speech, while the Renters Reform Bill will return although the commitment to ban “no-fault” evictions has been watered down.

It will be the first State Opening of Parliament by Charles as King, although he delivered the last Queen’s Speech of Elizabeth II’s reign in place of his mother last year.

Due to the late Queen’s long reign, it will be the first King’s Speech since George VI opened Parliament in 1950.