Hallam was jailed in 2005 for the murder of trainee chef Essayas Kassahun but has always protested his innocence

Error by private company LGC Forensics raises fears among law enforcement officials that other cases may be put in jeopardy

Private firm LGC Forensics admits sample became so contaminated it could not be offered in evidence

Prosecution in gangland murder case failed to disclose material relating to key witness who gave evidence for crown

High court quashes conviction for using cut-price Greek satellite decoder to bypass Sky’s official satellite feed

Nine-fold increase in use of force at Ashfield young offender institution only partly accounted for by rise in inmate numbers

Capita subsidiary failing to supply court and tribunal interpreters at short notice just two weeks after start of controversial contract

Majority of published responses to proposed expansion of ‘closed material procedures’ into civil courts are highly critical

Closing the Forensic Science Service will make miscarriages of justice more likely

Italian prosecutors appeal against the verdict that cleared Knox and Sollecito of Meredith Kercher’s murder in Perugia