“It has been the longstanding practice of the courts to recognise by a further discount of sentence the help given, and expected to be given, to the authorities in the investigation, detection, suppression and prosecution of serious crime.”
“The extent of the discount will ordinarily depend on the value of the help given and expected to be given. The value is a function of quality and quantity. If the information given is unreliable, vague, lacking in practical utility or already known to the authorities, no identifiable discount may be given; or, if given, any discount will be minimal. If the information given is accurate, particularised, useful in practice and hitherto unknown to the authorities, enabling serious criminal activity to be stopped and serious criminals brought to book, the discount may be substantial. Hence little or no credit will be given for the supply of a mass of information which is worthless or virtually so; but the greater the supply of good quality information, the greater in the ordinary way the discount will be. Where, by supplying valuable information to the authorities, a defendant exposes himself or his family to personal jeopardy, it will ordinarily be recognised in the sentence passed. For all these purposes, account will be taken of help given and reasonably expected to be given in the future.”
‘The creation of a statutory scheme would not deprive an offender of whatever consequent benefit he should receive on the existing “text” system.’
“While there are no hard and fast rules, the quality and quantity of the material provided falls to be considered. Particular value should be attached to an individual willing to give evidence or to information which produces convictions for, or prevents, serious crimes, or which leads to the destruction of major gangs.”
“The reduction for the provision of such information should be applied by the sentencing court before any discount for a guilty plea.”
“In this type of sentencing decision, the mathematical approach is liable to produce an inappropriate answer and that the totality principle is fundamental.”
“(1) No certain rules apply as to the extent to which the assistance will be reflected in the adjustment of sentence; the decision is fact-specific. (2) It is necessary to form a view as to the quantity and quality of the information provided. (3) The court will consider the terms on which the information was given; whether, for example, the offender was paid and, if so, how much. (4) The weight to be attached is for the Crown Court and this court will not interfere with such findings unless the decision either involves an error of law or principle or falls outside the judge’s discretion, in that no court properly directing itself in accordance with the law could have come to such a conclusion or is fundamentally lacking in any underlying reasoning.”