"I took a starting point of X years. I took account of assistance but only to a limited extent. It seemed to me that the defendant had been paid for that already. It reduced the sentence (by one year)."
"In addition to the submissions which have been made to us both in writing and orally by Mr Murray, we have considered a number of authorities, in particular King[1985] 7 Cr App R (S) 227 , Wood[1997] 1 Cr App R (S) 347 , P & Blackburn [2008] 2 Cr App (S) 5 , from which we distil the following principles: first, the assistance should be valued and discounted from the starting point before credit is given for a plea of guilty; second, the overriding principle is one of totality, namely that the sentence when reduced should reflect fully the value of the assistance and credit for a plea; third, the total credit available will generally be between 50 and 66 per cent, with the greatest credit being served for the maximum assistance and in particular those who put themselves at most risk for so acting."