Via The Telegraph (UK) (emphasis added):

"All adults will be issued with digital ID cards under plans by Sir Keir Starmer to tackle illegal immigration.

The Prime Minister is expected to announce… his backing in principle for a so-called "Brit card" designed to combat illegal migrants working in the black economy.

Anyone seeking to start a new job or rent a property would be required to present their digital ID, which would then be checked automatically against a central database of individuals entitled to work in the UK.

At present, workers have to show one of a number of physical ID documents, but there are concerns that some of these can be faked and there is little to stop unscrupulous employers claiming they have made a check when they have not.

Britain is one of the few countries in Europe without a national ID card system, which critics claim has allowed a black market in jobs to flourish, making the UK attractive to illegal migrants. However, it has been opposed by civil liberties groups for infringing on people's privacy.

The former Labour government tried to introduce ID cards, with the first issued in 2009, but the scheme was scrapped by the incoming Conservative-led coalition on the basis that it was an "erosion of civil liberties".

Previously Downing Street had poured cold water on the plans, but in the face of a growing backlash over the surge in illegal migrants and asylum hotels, Downing Street confirmed last month it was planning to crack down on "pull factors"* and illegal working, including exploring options around digital ID."

*Pull factors! More on those in a minute.