| R v Hodgson (1967) 52 Cr App R 113 | Sets common-law criteria for discretionary life sentences: seriousness, future danger, and gravity of possible harm. | Used to illustrate historical approach to indeterminate sentencing and to contrast with later statutory framework. |
| R v Wilkinson (1983) 5 Cr App R (S) 105 | Discretionary life sentences reserved for exceptional cases where danger may persist for an indeterminate period. | Supports proposition that future-risk assessment has long been integral to life-sentence decisions. |
| R v Parole Board, Ex p Bradley [1991] 1 WLR 134 | Parole Board may apply a lower threshold of risk at release stage than sentencing court applied initially. | Cited as key authority justifying different tests for imposition and release; court declined to overrule it. |
| Attorney-General’s Ref No 32 of 1996 (R v Whittaker) [1997] 1 Cr App R (S) 261 | Prefers “good grounds for believing danger may persist” over mathematical probability. | Supports rejection of probability-based definitions of “significant risk.” |
| R v Pedley [2009] EWCA Crim 840; [2009] 1 WLR 2517 | “Significant risk” should not be reduced to numerical probability; IPP proportionate where risk persists. | Referenced to show courts’ reluctance to quantify risk mathematically. |
| R v Chapman [2000] 1 Cr App R 77 | Interrelationship between gravity of offence, likelihood of re-offending, and gravity of potential harm. | Used to demonstrate overlapping sentencing factors pre-2003. |
| Attorney-General’s Ref No 34 of 1992 (R v Oxford) (1993) 15 Cr App R (S) 167 | Affirms continued authority of Hodgson criteria. | Cited in discussion of historical sentencing practice. |
| R v Lang [2005] EWCA Crim 2864; [2006] 1 WLR 2509 | Parliament likely intended life-sentence seriousness criterion to mirror pre-existing case-law. | Illustrates judicial uncertainty over how far 2003 Act altered thresholds. |
| R v Kehoe [2008] EWCA Crim 819; [2009] 1 Cr App R (S) 41 | Post-2003, life sentences reserved for particularly grave culpability once IPP available. | Shows judicial view that IPP reduced need for discretionary life sentences. |
| Thynne, Wilson & Gunnell v UK (1991) 13 EHRR 666 | ECHR requires judicial involvement in continuing detention beyond tariff. | Background for positioning Parole Board as release decision-maker. |
| Stafford v UK (2002) 35 EHRR 32 | Further develops ECHR standards for indeterminate detention. | Supports statutory framework placing release decision with Parole Board. |
| R (Noorkoiv) v SSH D [2002] 1 WLR 3284 | Judicial oversight necessary for detention justifications post-tariff. | Explains why IPP integrated into existing Parole Board regime. |
| R v SSH D, Ex p Benson (1988) | Risk assessment for Parole Board focuses on threat to life or limb, including non-violent rape. | Provides content for “risk” considered at release stage. |
| R v Parole Board, Ex p Wilson [1992] QB 740 | Affirms lower release-stage risk threshold and Board’s expertise. | Relied on as companion authority to Bradley. |
| R v Parole Board, Ex p Lodomez (1994) 26 BMLR 162 | Statutory phrase “no longer necessary” should not be paraphrased. | Cited to endorse textual focus over glosses. |
| R v Lichniak [2002] UKHL 47; [2003] 1 AC 903 | Parole Board is an investigative, not adversarial, body. | Used to counter allegation of “onus” on prisoner at release stage. |
| In re McClean [2005] UKHL 46; [2005] UKHRR 826 | Confirms investigative nature of Parole Board assessments. | Supports view that no improper burden lies on prisoner. |
| R v Smith (Nicholas) [2011] UKSC 37; [2011] 1 WLR 1795 | Suggested sentencing judge assesses present, not future, risk under IPP. | Supreme Court expressed reservations but did not overrule; discussed in distinguishing tests. |
| R v Johnson [2006] EWCA Crim 2486; [2007] 1 WLR 585 | Absence of past harm does not negate future “significant risk.” | Cited to illustrate predictive nature of IPP sentencing. |
| R (Walker) v SS Justice [2009] UKHL 22; [2010] 1 AC 553 | Repeated characterisation of IPP as requiring predictive risk assessment. | Relied on to question reasoning in Smith. |
| R (Bayliss) v Parole Board [2008] EWHC 3127; [2009] EWCA Civ 1016 | Previously assumed symmetry between imposition and release tests. | Supreme Court rejected that assumption. |
| R (Girling) v Parole Board [2006] EWCA Civ 1779; [2007] QB 783 | Secretary of State lacked power to instruct Board to apply “minimal risk” test. | Formed basis for Appellant’s second ground; court found no actual reliance on unlawful direction. |
| Van Droogenbroeck v Belgium (1982) 4 EHRR 443 | Continuing detention must stay connected to original sentencing objectives. | Discussed but found consistent with distinct imposition/release thresholds. |
| M v Germany (2010) 51 EHRR 41 | Similar principle on “causal connection” under ECHR. | See above; court found no Convention breach. |
| James v UK (2013) 56 EHRR 12 | ECHR upheld causal connection where release depended on risk reduction. | Used to demonstrate Convention compatibility of IPP scheme. |