The troubled Scottish telephone helpline NHS 24 has lost its third boss in three years, this time after less than six months in post. Sandy Forrest, a former deputy police constable, stepped down last week. A statement said he had joined NHS 24 with a number of external commitments and it had not proved possible to keep these up. A spokesman denied it was linked to recent criticism of NHS 24 over delays experienced by patients calling the service, which has handled out of hours calls for GP services inScotlandsince 2004.