Diminished Responsibility

Diminished Responsibility is a specialized practice area in Singapore's legal system. This area encompasses 55 cases from 2000 to 2024.

Leading Law Firms

Analysis of law firms specializing in Diminished Responsibility, ranked by case volume and success rates.

Law Firm	Cases	Success Rate	Key Lawyers	Recent Cases
Attorney-General’s Chambers70.97% success rate	31 cases56.4% of area	70.97% success rate	Kumaresan Gohulabalan (5 cases) Hay Hung Chun (5 cases) Lim Shin Hui (3 cases)	CNK v Public Prosecutor: Culpable Homicide, Sentencing Appeal, Mentally Disordered Young Offender, River Valley High School Axe Attack(Oct 2024) Tan Sen Yang v. Public Prosecutor: Murder, Sudden Fight, and Diminished Responsibility at Orchard Towers(Aug 2024) PP v CNK: Culpable Homicide & Diminished Responsibility in River Valley High School Killing(Dec 2023)
Deputy Public Prosecutors77.78% success rate	9 cases16.4% of area	77.78% success rate	David Khoo (3 cases) Jason Chan (2 cases) Christopher James de Souza (1 cases)	Public Prosecutor v Kwong Kok Hing: Sentencing for Attempted Culpable Homicide with Hurt(May 2007) G Krishnasamy Naidu v PP: Diminished Responsibility & Abnormality of Mind in Murder Case(Sep 2006) Public Prosecutor v G Krishnasamy Naidu: Murder, Diminished Responsibility & Delusional Disorder(Apr 2006)
Deputy Public Prosecutor87.50% success rate	8 cases14.5% of area	87.50% success rate	Shahla Iqbal (2 cases) Janet Wang (2 cases) Ng Cheng Thiam (1 cases)	Public Prosecutor v Lim Ah Liang: Culpable Homicide and Mental Illness(Mar 2007) Mohammad Zam v PP: Appeal Against Life Sentence for Culpable Homicide Due to Mental Disorder(Feb 2007) Public Prosecutor v Han John Han: Culpable Homicide and Delusional Disorder(Jan 2007)
Harry Elias Partnership0.00% success rate	8 cases14.5% of area	0.00% success rate	Subhas Anandan (5 cases) Sunil Sudheesan (4 cases) Anand Nalachandran (4 cases)	Public Prosecutor v Kwong Kok Hing: Sentencing for Attempted Culpable Homicide with Hurt(May 2007) Public Prosecutor v Lim Ah Liang: Culpable Homicide and Mental Illness(Mar 2007) Public Prosecutor v Han John Han: Culpable Homicide and Delusional Disorder(Jan 2007)
Eugene Thuraisingam LLP0.00% success rate	4 cases7.3% of area	0.00% success rate	Chooi Jing Yen (3 cases) Eugene Singarajah Thuraisingam (3 cases) Hamza Zafar Malik (2 cases)	Roszaidi v PP: Diminished Responsibility, MDD, SUD & Drug Trafficking Sentence(Nov 2022) Ahmed Salim v Public Prosecutor: Diminished Responsibility & Premeditated Murder(Jan 2022) Public Prosecutor v. Ahmed Salim: Murder, Provocation, and Diminished Responsibility in Golden Dragon Hotel Killing(Mar 2021)
Quahe Woo & Palmer LLC0.00% success rate	3 cases5.5% of area	0.00% success rate	Sunil Sudheesan (3 cases) Khoo Hui-Hui Joyce (2 cases) Ngiam Hian Theng Diana (1 cases)	CNK v Public Prosecutor: Culpable Homicide, Sentencing Appeal, Mentally Disordered Young Offender, River Valley High School Axe Attack(Oct 2024) PP v CNK: Culpable Homicide & Diminished Responsibility in River Valley High School Killing(Dec 2023) PP v Gaiyathiri: Culpable Homicide & Diminished Responsibility in Maid Abuse Case(Aug 2021)
Straits Law Practice LLC0.00% success rate	3 cases5.5% of area	0.00% success rate	N Sreenivasan (1 cases) Sujatha Selvakumar (1 cases) Lim Lay Choo Jennifer (1 cases)	World Sport Group v Dorsey James Michael: Pre-Action Interrogatories & Defamation(Apr 2013) Public Prosecutor v Leow Kok Meng: Culpable Homicide and Voluntarily Causing Grievous Hurt with Knife(Apr 2011) Public Prosecutor v. Kanesan S/O Ratnam: Murder Conviction for Prison Inmate(Feb 2002)
Kelvin Lim & Partners0.00% success rate	2 cases3.6% of area	0.00% success rate	Kelvin Lim (1 cases) Kelvin Lim Phuan Foo (1 cases)	PP v Wang Zhijian: Murder Conviction Upheld; Diminished Responsibility Defense Fails(Nov 2014) PP v Wang Zhijian: Diminished Responsibility, Murder, and Adjustment Disorder(Nov 2012)
Tan Lee & Partners0.00% success rate	2 cases3.6% of area	0.00% success rate	S Balamurugan (1 cases) S Balamurgan (1 cases)	Khwan-On Natthaphon v Public Prosecutor: Murder, Diminished Responsibility, Intention(Jan 2002) Public Prosecutor v Khwan-On Nathaphon: Murder, Diminished Responsibility(Oct 2001)
Leo Fernando0.00% success rate	2 cases3.6% of area	0.00% success rate	Peter Keith Fernando (1 cases) Peter Fernando (1 cases)	G Krishnasamy Naidu v PP: Diminished Responsibility & Abnormality of Mind in Murder Case(Sep 2006) Public Prosecutor v G Krishnasamy Naidu: Murder, Diminished Responsibility & Delusional Disorder(Apr 2006)

Notable Lawyers

Leading lawyers practicing in Diminished Responsibility, ranked by case volume and success rates.

Lawyer	Cases	Success Rate	Expertise Level	Recent Cases
Sunil Sudheesan0.00% success rate	12 cases21.8% of area	0.00% success rate	Highly Specialized85% relevance score	CNK v Public Prosecutor: Culpable Homicide, Sentencing Appeal, Mentally Disordered Young Offender, River Valley High School Axe Attack(Oct 2024) PP v CNK: Culpable Homicide & Diminished Responsibility in River Valley High School Killing(Dec 2023) PP v Gaiyathiri: Culpable Homicide & Diminished Responsibility in Maid Abuse Case(Aug 2021)
Subhas Anandan0.00% success rate	9 cases16.4% of area	0.00% success rate	Highly Specialized85.56% relevance score	Lim Ghim Peow v PP: Culpable Homicide & Diminished Responsibility Sentencing(Oct 2014) Public Prosecutor v Ong Pang Siew: Culpable Homicide Sentencing After Diminished Responsibility Finding(Jul 2011) PP v Pathip Selvan: Murder, Provocation, and Diminished Responsibility(Nov 2010)
Hay Hung Chun66.67% success rate	6 cases10.9% of area	66.67% success rate	Highly Specialized79.83% relevance score	Tan Sen Yang v. Public Prosecutor: Murder, Sudden Fight, and Diminished Responsibility at Orchard Towers(Aug 2024) Roszaidi v PP: Diminished Responsibility, MDD, SUD & Drug Trafficking Sentence(Nov 2022) Ahmed Salim v Public Prosecutor: Diminished Responsibility & Premeditated Murder(Jan 2022)
Kumaresan Gohulabalan60.00% success rate	5 cases9.1% of area	60.00% success rate	Highly Specialized76% relevance score	CNK v Public Prosecutor: Culpable Homicide, Sentencing Appeal, Mentally Disordered Young Offender, River Valley High School Axe Attack(Oct 2024) PP v CNK: Culpable Homicide & Diminished Responsibility in River Valley High School Killing(Dec 2023) Public Prosecutor v Zin Mar Nwe: Murder & Diminished Responsibility(May 2023)
Ng Cheng Thiam100.00% success rate	4 cases7.3% of area	100.00% success rate	Experienced73.75% relevance score	PP v Pathip Selvan: Murder, Provocation, and Diminished Responsibility(Nov 2010) Public Prosecutor v G Krishnasamy Naidu: Murder, Diminished Responsibility & Delusional Disorder(Apr 2006) PP v Tan Chun Seng: Provocation Defence in Murder Case(Feb 2003)
Amarjit Singh50.00% success rate	4 cases7.3% of area	50.00% success rate	Highly Specialized78.75% relevance score	Public Prosecutor v Ong Pang Siew: Culpable Homicide Sentencing After Diminished Responsibility Finding(Jul 2011) Public Prosecutor v Ong Pang Siew: Culpable Homicide and Diminished Responsibility(Jul 2009) PP v Juminem: Diminished Responsibility & Provocation in Maid's Murder Case(Sep 2005)
Anand Nalachandran0.00% success rate	4 cases7.3% of area	0.00% success rate	Highly Specialized81.25% relevance score	Public Prosecutor v Kwong Kok Hing: Sentencing for Attempted Culpable Homicide with Hurt(May 2007) Public Prosecutor v Lim Ah Liang: Culpable Homicide and Mental Illness(Mar 2007) Took Leng How v PP: Diminished Responsibility & Adverse Inferences in Murder Conviction Appeal(Jan 2006)
Eugene Singarajah Thuraisingam0.00% success rate	3 cases5.5% of area	0.00% success rate	Highly Specialized78.33% relevance score	Roszaidi v PP: Diminished Responsibility, MDD, SUD & Drug Trafficking Sentence(Nov 2022) Ahmed Salim v Public Prosecutor: Diminished Responsibility & Premeditated Murder(Jan 2022) Public Prosecutor v. Ahmed Salim: Murder, Provocation, and Diminished Responsibility in Golden Dragon Hotel Killing(Mar 2021)
Lim Shin Hui100.00% success rate	3 cases5.5% of area	100.00% success rate	Highly Specialized85% relevance score	Tan Sen Yang v. Public Prosecutor: Murder, Sudden Fight, and Diminished Responsibility at Orchard Towers(Aug 2024) Daryati v Public Prosecutor: Appeal Against Murder Conviction Based on Diminished Responsibility(Mar 2022) Public Prosecutor v Daryati: Murder & Diminished Responsibility Defence(Jun 2021)
Chooi Jing Yen0.00% success rate	3 cases5.5% of area	0.00% success rate	Highly Specialized76.67% relevance score	Ahmed Salim v Public Prosecutor: Diminished Responsibility & Premeditated Murder(Jan 2022) Public Prosecutor v. Ahmed Salim: Murder, Provocation, and Diminished Responsibility in Golden Dragon Hotel Killing(Mar 2021) Public Prosecutor v Khoo Kwee Hock Leslie: Murder, Diminished Responsibility, Provocation, and Sudden Fight(Sep 2019)

Recent Judgments

Displaying 50 most recent judgments out of 55 total cases

No.	Title	Court	Decision Date	Outcomes
1	CNK v Public Prosecutor: Culpable Homicide, Sentencing Appeal, Mentally Disordered Young Offender, River Valley High School Axe Attack	Court of Appeal of the Republic of Singapore	22 Oct 2024	Appeal Dismissed
2	Tan Sen Yang v. Public Prosecutor: Murder, Sudden Fight, and Diminished Responsibility at Orchard Towers	General Division of the High Court	07 Aug 2024	Conviction for murder under section 300(c) of the Penal Code; sentenced to life imprisonment and 12 strokes of the cane.
3	PP v CNK: Culpable Homicide & Diminished Responsibility in River Valley High School Killing	General Division of the High Court of the Republic of Singapore	27 Dec 2023	Sentence of 16 years of imprisonment imposed on the accused.
4	Public Prosecutor v Zin Mar Nwe: Murder & Diminished Responsibility	General Division of the High Court of the Republic of Singapore	17 May 2023	Accused convicted of murder.
5	Roszaidi v PP: Diminished Responsibility, MDD, SUD & Drug Trafficking Sentence	Court of Appeal of the Republic of Singapore	30 Nov 2022	Appeal Allowed; death penalty set aside and re-sentenced to imprisonment for life.
6	Daryati v Public Prosecutor: Appeal Against Murder Conviction Based on Diminished Responsibility	Court of Appeal of the Republic of Singapore	30 Mar 2022	Appeal Dismissed
7	Ahmed Salim v Public Prosecutor: Diminished Responsibility & Premeditated Murder	Court of Appeal of the Republic of Singapore	18 Jan 2022	Appeal dismissed.
8	PP v Gaiyathiri: Culpable Homicide & Diminished Responsibility in Maid Abuse Case	General Division of the High Court of the Republic of Singapore	03 Aug 2021	Accused sentenced to 30 years’ imprisonment.
9	Public Prosecutor v Daryati: Murder & Diminished Responsibility Defence	General Division of the High Court of the Republic of Singapore	09 Jun 2021	Conviction under Section 300(c) of the Penal Code; sentenced to life imprisonment.
10	Public Prosecutor v. Ahmed Salim: Murder, Provocation, and Diminished Responsibility in Golden Dragon Hotel Killing	General Division of the High Court	21 Mar 2021	Accused convicted of murder; mandatory death sentence imposed.
11	Public Prosecutor v Tan Kok Meng: Murder, Unsoundness of Mind	High Court of the Republic of Singapore	02 Nov 2020	Acquit Kok Meng of the charge under s 300(a) of the Penal Code on the basis of s 84 of the Penal Code.
12		-	12 Aug 2020	Unknown
13	PP v Lim Chai Heng: Sentencing of Mentally Disordered Offender in Fatal Traffic Accident	High Court of the Republic of Singapore	24 Nov 2019	Accused sentenced to one year imprisonment and disqualified from driving for 12 years.
14	Public Prosecutor v Khoo Kwee Hock Leslie: Murder, Diminished Responsibility, Provocation, and Sudden Fight	High Court of the Republic of Singapore	16 Sep 2019	Convicted of murder; sentenced to life imprisonment.
15	PP v Mohd Ariffan: Adducing Fresh Evidence on Appeal in Sexual Offence Case	Court of Appeal of the Republic of Singapore	13 Feb 2018	The Prosecution's application to admit the affidavits of Matin, Superintendent Chua, and Assistant Superintendent Jaga was dismissed. The application to admit the evidence of Ms. Ng was allowed in part. Ms. Ng's affidavit, section 7, and paragraphs 5.3.4 and 5.5 of the expert report are admitted as further evidence in this appeal.
16	Iskandar bin Rahmat v Public Prosecutor: Murder Conviction Appeal - Diminished Responsibility, Private Defence	Court of Appeal of the Republic of Singapore	02 Feb 2017	Appeal Dismissed
17	Public Prosecutor v Sutherson: Culpable Homicide & Paranoid Schizophrenia	High Court	05 Nov 2015	Accused convicted and sentenced to life imprisonment.
18	PP v Wang Zhijian: Murder Conviction Upheld; Diminished Responsibility Defense Fails	Court of Appeal	27 Nov 2014	Appeal dismissed. Accused found guilty of murder.
19	Lim Ghim Peow v PP: Culpable Homicide & Diminished Responsibility Sentencing	Court of Appeal of the Republic of Singapore	16 Oct 2014	Appeal Dismissed
20	PP v Lim Ghim Peow: Culpable Homicide, Major Depressive Disorder & Sentencing Principles	High Court	26 Jan 2014	The accused was sentenced to 20 years' imprisonment.
21	World Sport Group v Dorsey James Michael: Pre-Action Interrogatories & Defamation	High Court	09 Apr 2013	Appeal allowed in part. The defendant had to answer interrogatories nos 1, 2(a), 2(b), 2(c), 6 and 6.1.
22	PP v Wang Zhijian: Diminished Responsibility, Murder, and Adjustment Disorder	High Court	29 Nov 2012	Accused found guilty of murder for one charge and culpable homicide for two charges due to diminished responsibility.
23	Public Prosecutor v Ong Pang Siew: Culpable Homicide Sentencing After Diminished Responsibility Finding	High Court	26 Jul 2011	The accused was sentenced to 10 years’ imprisonment backdated to 20 October 2007.
24		-	04 Jul 2011	Unknown
25	Public Prosecutor v Leow Kok Meng: Culpable Homicide and Voluntarily Causing Grievous Hurt with Knife	High Court	07 Apr 2011	Accused convicted and sentenced to life imprisonment for each offence.
26	PP v Pathip Selvan: Murder, Provocation, and Diminished Responsibility	High Court	11 Nov 2010	Accused found guilty of murder as charged.
27	Public Prosecutor v Ong Pang Siew: Culpable Homicide and Diminished Responsibility	High Court	29 Jul 2009	Guilty and convicted on the charge of murder. The mandatory death sentence was passed on him.
28	PP v Aniza bte Essa: Abetment of Culpable Homicide & Sentencing of Mentally Disordered Offenders	Court of Appeal of the Republic of Singapore	19 Apr 2009	Appeal Dismissed
29	PP v Aniza bte Essa: Culpable Homicide & Sentencing for Mentally Disordered Offenders	High Court	27 Apr 2008	Accused convicted and sentenced to 9 years imprisonment.
30	Public Prosecutor v Kwong Kok Hing: Sentencing for Attempted Culpable Homicide with Hurt	High Court	29 May 2007	Accused sentenced to one year's imprisonment.
31	Public Prosecutor v Lim Ah Liang: Culpable Homicide and Mental Illness	High Court	15 Mar 2007	The accused was sentenced to life imprisonment.
32	Mohammad Zam v PP: Appeal Against Life Sentence for Culpable Homicide Due to Mental Disorder	Court of Appeal of the Republic of Singapore	22 Feb 2007	Appeal Dismissed
33	Public Prosecutor v Han John Han: Culpable Homicide and Delusional Disorder	High Court	14 Jan 2007	Accused sentenced to three years imprisonment.
34	G Krishnasamy Naidu v PP: Diminished Responsibility & Abnormality of Mind in Murder Case	Court of Appeal	20 Sep 2006	Appeal Allowed
35	PP v Lim Ah Seng: Culpable Homicide & Sentencing Factors in Domestic Abuse Case	High Court	06 Jul 2006	Accused sentenced to imprisonment of two years and six months.
36	Public Prosecutor v G Krishnasamy Naidu: Murder, Diminished Responsibility & Delusional Disorder	High Court	25 Apr 2006	Accused convicted on the charge of murder; defence of diminished responsibility rejected.
37	Public Prosecutor v Hwang Yew Kong: Culpable Homicide, Schizophrenia, and Life Imprisonment	High Court	09 Feb 2006	Accused sentenced to imprisonment for life.
38	Took Leng How v PP: Diminished Responsibility & Adverse Inferences in Murder Conviction Appeal	Court of Appeal of the Republic of Singapore	24 Jan 2006	Appeal Dismissed
39	PP v Juminem: Diminished Responsibility & Provocation in Maid's Murder Case	High Court	04 Sep 2005	Both accused persons found not guilty of murder but guilty of the offence of culpable homicide not amounting to murder.
40	PP v Took Leng How: Murder, Diminished Responsibility & Schizophrenia	High Court	25 Aug 2005	Accused found guilty as charged and sentenced to the mandatory death penalty.
41	Zailani bin Ahmad v Public Prosecutor: Diminished Responsibility & Common Intention in Murder Charge	Court of Appeal of the Republic of Singapore	22 Nov 2004	Appeal dismissed.
42	Public Prosecutor v Low Ah Soy: Culpable Homicide and Mischief Sentencing	High Court	04 Nov 2004	The accused was sentenced to four years’ imprisonment.
43	PP v Zailani bin Ahmad: Murder, Common Intention, Diminished Responsibility	High Court	12 Sep 2004	Accused found guilty and imposed the mandatory death sentence.
44	Public Prosecutor v Chia Moh Heng: Sentencing for Culpable Homicide and Mental Impairment	High Court	08 May 2003	Accused sentenced to life imprisonment.
45	Public Prosecutor v Seng Inn Thye: Attempted Murder Sentencing for Stabbing Ex-Wife	High Court	13 Apr 2003	The accused was sentenced to 5 years imprisonment and 4 strokes of the cane.
46	PP v Tan Chun Seng: Provocation Defence in Murder Case	High Court	27 Feb 2003	Accused convicted and sentenced to death.
47	Public Prosecutor v Lim Hock Hin: Culpable Homicide, Mental Impairment, and Sentencing	High Court	14 Jul 2002	The accused was sentenced to life imprisonment with a direction for regular treatment of his illness.
48	Public Prosecutor v. Kanesan S/O Ratnam: Murder Conviction for Prison Inmate	High Court	27 Feb 2002	Guilty as charged and sentenced to suffer death.
49	Khwan-On Natthaphon v Public Prosecutor: Murder, Diminished Responsibility, Intention	Court of Appeal	07 Jan 2002	Appeal Dismissed
50	Public Prosecutor v Khwan-On Nathaphon: Murder, Diminished Responsibility	High Court	14 Oct 2001	Guilty of the charge; convicted and sentenced to death.