According to a police drug expert , PC Adrian Parsons , the heroin found was of `` importation quality '' -- that is , with a purity of 61 % , compared with the average 26 % purity found at street level . NEW : Puncture marks found on Bob Geldof 's arms and one leg , an inquest hears . She had been addicted to heroin for a number of years but tried to give it up . She had been on a methadone diet , an inquest found . Police found heroin in her home of a much greater purity than average found on the street .
NEW : Puncture marks found on Bob Geldof 's arms and one leg , an inquest hears . She had been addicted to heroin for a number of years but tried to give it up . She had been on a methadone diet , an inquest found . Police found heroin in her home of a much greater purity than average found on the street .