Jean Charles de Menezes, 27, was shot and killed by police outside Stockwell Tube station in 2005.
Female officers will be sent out dressed as runners, a West Mercia Police spokesperson says.
The family of Ricky Reel, who died after a racist attack, tell how they were spied on by the Met Police.
Police patrolled the motorway in an unmarked lorry cab to catch drivers committing offences.
A new podcast series uncovers the story behind a case which rocked British policing - and damaged lives.
Meta said using third party firms to collect data on Facebook users for surveillance was prohibited.
Kate Wilson met the undercover officer while he was posing as an environmental campaigner in 2003.
The Met Police faces legal action after undercover officers used four dead children's identities.
