Provocation Reconsidered: A Comparative Analysis of Singapore’s Penal Code and the UK’s Loss of Control Defence

By Chin Zong Hong, Nicholas

Category Award: Criminal Law, UKSLSS Essay Competition 2025

Introduction

Historically, in both the UK and Singapore, provocation was recognised as a partial defence to

murder. The defence of provocation was defined in R v Duffy by Devlin J. [1] who said that:

Provocation is some act, or series of acts, done by the dead man to the accused, which would cause in any reasonable person, and actually causes in the accused, a sudden and temporary loss of self-control, rendering the accused so subject to passion as to make him or her for the moment not master of his mind.

However, the defence of provocation in both jurisdictions have gone in different directions. While

Singapore continued to retain the provocation defence, the defence was abolished in the UK on

4 October 2010 by section 56(1) of the Coroners and Justice Act 2009, and was replaced by a

new partial defence of loss of control in section 54.

The reform was intended to “overcome problems associated with the provocation defence”, the “gendered operation of the law of homicide” in relation to “male-perpetrated intimate homicides”, and the “inadequate response of the law” in “battered women” cases [2]. However, the loss of control defence has faced criticism for the uncertainties it introduces into the law regarding the defence’s application.

Thus, this essay argues that the UK should abandon the loss of control defence and adopt Singapore’s position on the provocation test. In comparing the positions in both jurisdictions, this essay highlights the shortcomings of the UK’s loss of control defence, and explains how the Singapore position can address these gaps.

UK’s Old Provocation defence and Loss of Control Defence

The defence was formulated in England in the 17th century to “provide a concession to human frailty at a time when there was a mandatory capital penalty for all offenders convicted of murder” [3].

Prior to the reform, the provocation defence was contained in section 3 of the Homicide Act 1957, which provided that for the defence to succeed, the jury had to decide if a reasonable person would have acted as the defendant did. In the seminal case of Camplin [4], it was held that the accused’s age and sex can be attributed to the reasonable man when determining the defendant’s power of self-control, and any characteristic of the accused when ascertaining the gravity of the provocation.

In a number of cases, including Luc Thiet Thuan [5] and Morhall [6], the court held that the jury

should be directed to consider whether an ordinary person with ordinary powers of self-control would have reacted to the provocation in the same manner as the defendant, and that no allowance should be made for characteristics which might have made him more volatile than the ordinary person. In Luc Thiet Thuan, the Privy Council had “declined to take account of the defendant’s brain damage when applying the reasonable man standard” [7].

The provocation defence has always been viewed as controversial in England and Wales [8].

Debates centred around its operation in two situations: “men who kill a female intimate partner in response to alleged infidelity or relationship separation” and "female defendants who kill an abusive male partner” [9]. In a line of cases involving such “battered women who killed their male abusers”, such as Thornton [10] and Humphreys [11], the defence of provocation failed [12], owing to a perceived “gender bias inherent" in the defence [13]. It was argued that the requirement “reflected a typically male reaction to provocation” which “women were very unlikely to display”, as men tend to “lash out in the heat of the moment” when provoked while women “instinctively recognise that they cannot afford to react in the same way” [14].

The Law Commission, which was instructed by the government to review homicide law and to

make its recommendations for reform [15], had identified certain issues with the old provocation defence, such as “inconsistencies in the case law regarding the defendant’s characteristics” that are relevant to the reasonable person standard, and the difficulty in applying the law (which was based on anger) to situations “where the predominant emotion was fear” [16].

Therefore, in 2010, the British Government abolished the provocation defence and introduced the partial defence of loss of control. This was done to “allow for the law of homicide...to better cater for the unique circumstances within which battered women kill” while excluding “defendants who kill an intimate partner in response to alleged sexual infidelity” [17]. The “battered women” cases refer to the situation where female defendants “kill in response to prolonged family violence” [18].

Unlike the old provocation defence, the loss of control defence covered two particular contexts: (1) killings in response to a fear of serious violence, and (2) killings which occur in ‘response to words or conduct which caused the defendant to have a justifiable sense of being seriously wronged' [19]. Thus, in order to rely on the defence, the loss of control must be due to one of the two qualifying triggers and that a person of the defendant’s gender and age, “‘with a normal degree of tolerance and self-restraint', might be expected to react in the same or a similar way as the defendant.” [20].

Interestingly, the Law Commission had recommended that the ‘loss of control’ requirement be removed on the basis of the inherent gender bias. However, the government did not remove the requirement entirely out of fear that it could open the defence to “unmeritorious cases, such as `honour killings, gang-related homicides, and some battered spouse cases'” [21] Nevertheless, to

address such concerns, the government had removed the "suddenness" requirement from the defence so as to cater to “battered women” cases where the defence had failed [22]. Additionally,

this removal was meant to account for situations “where the defendant’s reaction has been delayed or builds gradually” [23].

A notable feature of this defence is that it excludes situations involving “sexual infidelity” from constituted a “qualifying trigger”. The rationale provided by the Ministry of Justice was that the government did not accept that “sexual infidelity should ever provide the basis for a partial defence to murder” [24].

In interviews carried out by one author with various respondents, the loss of control defence has been criticised primarily in two respects: (a) the “inclusion of fear as a qualifying trigger” and (b) the “exclusion of homicides arising from situations of sexual infidelity” [25].

For criticism (a), it has been argued that the continued presence of the “loss of control” requirement means that the inclusion of fear as a qualifying trigger would be rendered useless in “battered women” cases, as there may be cases where some persons may feel a fear of serious violence but there may not be self control when the killing takes place [26]. Furthermore, it may be ambiguous as to what amounts to fear and the evidence required to prove such fear [27].

For criticism (b), the respondents believed that the exclusion of cases involving sexual infidelity

would render the application of the defence unclear [28]. The respondents opined that this exclusion was “not good law-making” and that it would have been better to “lay down the general principles” and let the juries discount such cases themselves if they deem the defence to be unreasonably used [29]. Because juries “inject an important community value judgment into the evaluation and categorisation of differing culpabilities in homicide cases”, such judgment should arguably not be "overridden by legislation” [30]. Additionally as there is no definition of what “sexual infidelity” means, this gives rise to uncertainty around the application of the defence [31].

While the court in Clinton [32] has since clarified that the accused would not be precluded from relying on the new defence where sexual infidelity was not the sole cause of the loss of control, the concerns highlighted by the respondents nevertheless remain. In that case, the court “stressed the need to consider the context in which the loss of control occurred”[33].

Further, as noted elsewhere, while the government had recognised that “perpetrators of ‘honour killings’ should not benefit from the new plea”, it was satisfied that the high threshold for the “words and conduct of the partial defence” will exclude such killings [34]. If such a situation was not explicitly provided for by statute, it may be questioned why there was a need for sexual infidelity to be specifically excluded.

Another criticism levelled against the new defence was that it would complicate the defence, making it difficult to give directions to juries. [35] For instance, one author pointed out the ambiguity of the language in section 54, such as the terms “extremely grave” and “seriously wronged” [36].

Singapore’s provocation defence

The partial defence of provocation is enshrined in Exception 1 to section 300 of the Penal Code 1871. Similar to the UK, it provides that the provocation has to be grave, sudden and the offender was deprived of their self-control by the provocation. Additionally, the defence fails if the provocation was (a) sought or provoked voluntarily, (b) was given by something done in obedience to the law or by a public servant, or (c) was given in private defence.

Similar to the UK position pre-reform, while the court may take into account the mental infirmities of the accused if they affected the gravity of the provocation, conversely, individual peculiarities which merely affected the accused’s power of self control should not be considered [37].

Unlike the UK’s loss of control defence, case law has retained the suddenness requirement of the provocation defence [38]. Also, Singapore has not precluded accused persons from relying on the defence in cases involving infidelity [39]. The court in the Kwan Cin Cheng case [40]

found the offender’s mental or emotional state relevant in the inquiry and the court held that romantic and sexual relationships “arouse the strongest of human emotions” and that it was natural for sexual infidelity to “greatly distress” someone [41].

Further, Singapore case law also recognises the concept of cumulative provocation, which is also statutorily provided for in illustration G to the Exception. In Sundarti, a case involving the killing of an employer by a domestic maid, the court recognised that previous acts of abuse by the employer was sufficiently grave to provoke a reasonable person in the accused’s position [42].

Singapore’s Penal Code Review Committee, in its 2018 report, had recognised the criticisms levelled against the old provocation defence in the UK, stating that the provocation defence tended to “favour the typical male reaction to provocation of instantaneous reaction” and its “undesirable tendency of excluding “slow-burn” cases involving offenders whose reaction was delayed or built up gradually, particularly in cases involving battered women or victims of domestic violence” [43]. However, the committee recognised that if the suddenness requirement was removed, as it had been done in the UK, the defence may have the effect of exonerating “cold-blooded killers who kill in a calculated manner” [44]. Thus, to circumvent these criticisms, illustration (g) had been provided for in statute.

While it may be argued that Singapore’s position may not be suitable in the UK’s context, given that it may be undesirable for the jury to assess all aspects of the provocation, it is submitted that Singapore’s position may actually be even more appropriate for such juries. By simplifying the law by having clear illustrations being built on existing case law, and leaving enough discretion for the jury to decide each case on its own facts, it is argued that justice may be better served in this manner.

Conclusion

By doing a brief comparison of the key features (and shortcomings) of the provocation defence in both jurisdictions, this essay has shown how adopting Singapore’s position in this area of law helps achieve the objectives which the UK Law Commission and government had originally aimed towards, and circumvents the issues arising from the new loss of control defence.

References

[1] R v Duffy (1949) 1 All ER 932.

[2] Kate Fitz-Gibbon, “Replacing Provocation in England and Wales: Examining the Partial Defence of Loss of Control” (2013) 40 Journal of Law and Society 2, 280-305, 280 [Kate].

[3] Kate, supra note 2 at 284.

[4] Director of Public Prosecutions v Camplin (1978) AC 705 (HL).

[5] Luc Thiet Thuan v R (1997) AC 131 (PC).

[6] R v Morhall (1995) 3 AER 659 (HL)

[7] Barry Mitchell, “Years of Provocation, Followed by a Loss of Control” in Lucia Zedner & Julian V Roberts, Principles and Values in Criminal Law and Criminal Justice (2012) (OUP 2012) at 119 [Barry].

[8] Kate, supra note 2 at 284.

[9] Ibid at 285.

[10] R v. Thornton [1992] 1 All E.R. 306

[11] R v. Humphreys [1995] 4 All E.R. 1008

[12] Kate, supra note 2 at 289-290.

[13] Ibid at 287.

[14] Ibid at 287.

[15] Kate, supra note 2 at 285.

[16] Barry, supra note 7 at 121.

[17] Kate, supra note 2 at 280.

[18] Ibid at 289.

[19] Ibid at 286.

[20] Ibid at 287.

[21] Ibid at 287.

[22] Ibid at 287.

[23] Barry, supra note 7 at 122.

[24] Kate, supra note 2 at 288.

[25] Ibid at 289.

[26] Ibid at 291-292.

[27] Ibid at 292.

[28] Ibid at 293.

[29] Ibid at 294.

[30] Ibid at 294.

[31] Ibid at 294-295.

[32] R v Clinton [2012] EWCA Crim 2.

[33] Barry, supra note 7 at 125.

[34] Ibid at 124.

[35] Kate, supra note 2 at 300.

[36] Barry, supra note 7 at 124.

[37] Lau Lee Peng v Public Prosecutor [2000] SGCA 13.

[38] See Pathip Selvan s/o Sugumaran v Public Prosecutor [2012] SGCA 44 [Pathip Selvan].

[39] See Pathip Selvan.

[40] Public Prosecutor v Kwan Cin Cheng [1998] 1 SLR(R) 434.

[41] Ibid at [72].

[42] Public Prosecutor v Sundarti Supriyanto [2004] SGHC 212 at [155] and [157].

[43] Ministry of Law, Penal Code Review Committee Report (2019) at 290.

[44] ibid.