Boris Johnson has sparked anger in Northern Ireland with plans to ban the prosecution of troops or terrorists over the Troubles.
It's understood the government is looking at a statute of limitations which would stop people being charged over incidents that happened before the 1998 Good Friday peace agreement.
It would apply on all sides of the divide, including to former security force members and to paramilitaries.
Instead there would be a Nelson Mandela-style "truth and reconciliation" process in which people come forward to speak openly.
An exemption would still enable war crimes, such as torture, to be prosecuted, according to the Times and the Telegraph.
But many victims of the Troubles are vehemently opposed to any statute of limitations, which they characterise as an amnesty that will thwart their chances of justice.
Unionist and nationalist politicians both condemned the move today.
Deputy First Minister Michelle O'Neill of Sinn Fein tweeted: "Reports that British government are to legislate for an amnesty for their state forces is another slap in the face to victims.
"Another cynical move that will put British forces beyond the law. This is legal protection for those involved in state murder. This is not acceptable."
Traditional Unionist Voice leader Jim Allister meanwhile said: "If the kite-flying in today's national press proves correct, then amnesty for terrorist murder is shamefully on its way.
"Amnesty for terrorists in the tailwind of action to protect veterans is not acceptable, either by reason of the equivalence it embraces or the disproportionate advantage to terrorists."
SDLP leader Colum Eastwood tweeted: "If true, this will be the biggest betrayal of victims by the British government & will put a huge obstacle in the way of true reconciliation. This is the most unprincipled & cynical British government in many years and that's saying something. An absolute disgrace. Shame on them."
Alliance Party leader and Stormont Justice Minister Naomi Long tweeted: "This kind of briefing, before any meaningful engagement with victims' families, typifies the contempt with which Govt are treating victims.
"I believe that they deserve justice where that is possible: however, at the very least, they deserve not to learn of Govt plans on Twitter."
Whitehall sources insisted the move was not an "amnesty" and stressed no formal plans have been approved yet.
"A range of options remain under consideration", a UK government source said.
But a government spokeswoman added: "The Government has clear objectives for addressing the legacy of the Troubles and delivering its manifesto commitments to veterans who served in Northern Ireland.
"We want to deal with the past in a way that helps society in Northern Ireland to look forward rather than back.
"It is clear to all that the current system for dealing with the legacy of the Troubles is not working for anyone, failing to bring satisfactory outcomes for families, placing a heavy burden on the criminal justice system, and leaving society in Northern Ireland hamstrung by its past."
A spokesman for Ireland's Foreign Affairs Minister Simon Coveney expressed concern, saying: "Only through a collective approach can we deal with these issues comprehensively and fairly in a way that responds to the needs of victims, survivors and society as a whole.
"Victims and their families are the only priority."
The reported move, some detail of which could be announced in next week's Queen's Speech, would signal the scrapping of a key mechanism agreed by the UK and Irish Governments and main Northern Ireland parties in the 2014 Stormont House Agreement.
The Stormont House proposals included a new independent investigation unit to re-examine all unsolved killings.
Last March, Mr Lewis announced an intention to unilaterally move away from the Stormont House deal.
He said only Troubles killings where compelling new evidence had emerged would receive a full police reinvestigation.
He added that most unsolved cases would be closed and a new law would prevent them being reopened.
On Tuesday, the trial of two former paratroopers accused of the murder of Official IRA commander Joe McCann in 1972 collapsed due to legal issues related to the admissibility of statements and interviews given by the ex-soldiers.
