I only heard of this today and the final reading is in the House of Lords tomorrow then it becomes law 
“Covert Human Intelligence Sources (Criminal Conduct) Bill 2019-21”
A Bill to make provision for, and in connection with, the authorisation of criminal conduct in the course of, or otherwise in connection with, the conduct of covert human intelligence sources.
Extract from detailed article in Daily Mail:
Spy Kids: New intelligence law allows CHILDREN to work as secret agents for local councils, anti-fraud bodies and even the gambling watchdog - and even shop their own parents
“Scores of Government bodies, the armed forces and even the gambling regulator will legally be allowed to use child spies - including against their parents.
Police and the security services are among those who will be allowed to use under-18s as covert human intelligence sources (CHIS) under 'exceptional circumstances' according to official documents.
But guidance for the Covert Intelligence Bill, currently going through the Lords, outlines other public bodies who will be allowed to employ them as undercover agents.
As well as police, MI5, MI6 and the National Crime Agency, they include the Gambling Commission, county and district councils, the Environment Agency and the Food Standards Agency.
The document, which has been published online, prohibits those under 16 from being used to inform on their parents or guardians.
But it permits the use of older teenagers to be used against their own family under special circumstances.”
Who is allowed to use under-18s as undercover agents?
All UK civilian police forces
Ministry of Defence Police
Royal Navy Police
Royal Military Police
Royal Air Force Police
British Transport Police
National Crime Agency
Serious Fraud Office
The Security Service (MI5)
The Secret Intelligence Service (MI6)
The Government Communications Headquarters (GCHQ)
The Royal Navy
The Army
The Royal Air Force
HM Revenue and Customs
DEFRA Investigation Services
Centre for Environment, Fisheries and Aquaculture Science
Marine Management Organisation
The Medicines and Healthcare Products Regulatory Agency
Home Office
Ministry of Justice
Northern Ireland Prison Service
The Insolvency Service
Welsh Government
Any county council or district council in England, London boroughs, The City of London in its capacity as a local authority, the Council of the Isles of Scilly, and any county council or borough council in Wales
Environment Agency
The Prudential Regulation Authority
Competition and Markets Authority
Financial Conduct Authority
Food Standards Agency
The Gambling Commission
Health and Safety Executive
Continued at:
www.dailymail.co.uk/news/article-9122121/Spy-Kids-New-intelligence-law-allows-CHILDREN-work-secret-agents-against-parents.html
Baroness Young of Hornsey raised concerns about children and vulnerable young people being used as “Covert Human Intelligence Sources” on 3 Dec 2020 in The Lords:
hansard.parliament.uk/Lords/2020-12-03/debates/724899B7-6EB1-4AD6-B1F6-925330D326D0/CovertHumanIntelligenceSources(CriminalConduct)Bill#contribution-073DD912-F320-4733-8366-BA268CD86F4C