Informal approach dominates accident investigation . Domestic violence is a workplace issue . GPs to collect occupational ill-health data . Report on genetic testing awaited . Homecare staff work in "unsafe" premises . Health workers lack OH support . News in brief . Taking workplace mental health on board . Long-term absence causes biggest headache . Stress in the public sector soars . Companies to report H&S performance . Pilots oppose drug and alcohol testing . NHS staff fear physical and verbal abuse . Health and safety digest