A report critical of the Metropolitan Police has found that a secret police unit kept information on families of 17 justice campaigns.
Although the police have apologised to the families involved, they insist there is no evidence that their undercover officers spied on or targeted perfectly legal justice campaigns.
ITV News correspondent Paul Davies reports:
More top news
The PM will sound out the possibility of new free trade agreements with Gulf states for once the UK has left the EU.
In the unexpected announcement on Monday, Mr Key said it was the "right time" to leave politics.
As the Government's Brexit appeal comes to the Supreme Court, here's a look at what you need to know.