Canadian 'poison seller' linked to 112 deaths of Britons pleads guilty to aiding suicide — but won't face justice in UK

He faced 14 charges of aiding suicide and subsequently pleaded guilty to all 14 counts.

None of the charges relate to his connections with the British deaths.

An agreed statement of facts between both legal teams would record that Law had delivered 330 packages to 286 British recipients.

However, Law will not be tried in the UK over prosecutors' fears that a court could reject his extradition.

British authorities believe the 60-year-old could challenge the request because of "double jeopardy" principles.

Such laws means that, because he will have already been convicted of similar offences overseas, he could be prevented from being tried or punished again for the same offence.

Affected families in the UK hit out at the decision to call on their relatives in the Canadian case without letting Law be brought to justice in Britain.

One said: "If our own country will not put anyone on trial for these deaths, the very least it can do is hold a proper inquiry into how they were allowed to happen."

Meanwhile, Specialist Crown Prosecution Service prosecutor Andrew Hudson defended the victims' inclusion in the overseas' case.

He insisted it was the "quickest and most effective route" to securing justice, adding: "The alternative and more conventional approach would have been to attempt to prosecute Kenneth Law in our jurisdiction.

"This would only have been possible following a successful extradition process, something which was far from guaranteed and would have taken years to conclude."

Mr Hudson explained: “This is because the same conduct would already have been punished by the Canadian courts.

"The evidence that his products were sent to the UK was already included in the Canadian proceedings."

Prosecutors believed the settlement reached with Canadian official would allow the "full devastating extent" of Law's criminal activities to be reflected when he receives his sentence.

He said: "A condition of our agreement with the Canadian prosecutor was that Kenneth Law’s sentence must reflect the fact that people died in England and Wales as a direct result of using products that he supplied to them.

"No victim has been left behind as part of this process," he insisted.

Mr Hudson branded Law as "a serial offender who callously exploited many vulnerable and innocent people, exchanging their lives for his financial gain".

"Ultimately, the approach we have agreed with our NCA (National Crime Agency) and Canadian partners will guarantee justice for our victims in the quickest possible way, ensuring Kenneth Law is held accountable for the full extent of the devastation he caused," he told reporters.