I ain't expert in British law but couldn't this police procedure be considered abusive?

Entrapment in British common law refers to a situation where law enforcement agents induce or persuade a person to commit a criminal offense that they otherwise would not have committed of their own free will. It aims to prevent abusive tactics where the state effectively "traps" someone into committing a crime.

Entrapment is generally treated as an **abuse of the court’s process** rather than a traditional defense. If proven, courts may exclude evidence obtained through entrapment or stay the prosecution entirely to preserve the integrity of the justice system.