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{{Short description|Police rank}}
{{Short description|Police rank}}
The '''Sub-inspector''' ('''S. I.''') is a rank used extensively in [[South Asia]]: in the police of [[Bangladesh]], [[Pakistan]], [[India]], and [[Sri Lanka]], which is primarily based on the [[United Kingdom|British]] [[UK police ranks|model]]. It was formerly used in most [[British Empire|British colonial]] [[police]] forces and in certain [[British police]] forces as well. The rank usually was in charge of a [[police substation]] or assisted an [[inspector]].
{{More citations needed|date=July 2025}}
'''Sub-inspector''' ('''SI'''), or '''sub-inspector of police''' or '''police sub-inspector''' ('''PSI'''), is a rank used extensively in South Asia: in the [[police]] forces of Bangladesh, Pakistan, India, and Sri Lanka, which are primarily based on the [[UK police ranks|British model]]. It was formerly used in most [[British Empire|British colonial]] police forces and in certain [[British police]] forces as well. The rank usually was in charge of a [[police substation]] or assisted an [[inspector]].


== United Kingdom ==
== United Kingdom ==
The rank of sub-inspector was introduced into the [[Metropolitan Police]] in the late 19th century. It did not last long, being effectively replaced by [[station sergeant]] in 1890. Officers who already held the rank retained it, and were promoted to inspector as soon as a vacancy arose.
The rank of sub-inspector was introduced into the [[Metropolitan Police]] in the late 19th century. It did not last long, being effectively replaced by [[station sergeant]] in 1890. Officers who already held the rank retained it, and were promoted to inspector as soon as a vacancy arose.


In the Metropolitan Police, a rank wearing one star was formerly officially known as [[Station Inspector]] to distinguish it from the more senior rank of Sub-Divisional Inspector that was abolished in 1949.
In the Metropolitan Police, a rank wearing one star was formerly officially known as a "[[station inspector]]" to distinguish it from the more senior rank of sub-divisional inspector that was abolished in 1949.


== Canada ==
== Canada ==
The [[Royal Canadian Mounted Police]] rank of sub-inspector was introduced in 1942 with the insignia of one star, similar to an Army [[second lieutenant]]. This was changed in 1960 to three stars, similar to an Army captain. It was disestablished in the reorganization of 1990, which eliminated the RCMP's subaltern ranks.<ref>p.37 Ross, David & May Robin ''The Royal Canadian Mounted Police 1873-1987'' 1988 Osprey Publishing</ref>
The [[Royal Canadian Mounted Police]] rank of sub-inspector was introduced in 1942 with the insignia of one star, similar to an army [[second lieutenant]]. This was changed in 1960 to three stars, similar to an army captain. It was disestablished in the reorganization of 1990, which eliminated the RCMP's subaltern ranks.<ref>{{cite book |page=37 |last1=Ross |first1=David |first2=May |last2=Robin |title=The Royal Canadian Mounted Police 1873-1987 |year=1988 |publisher=Osprey Publishing}}</ref>


==Hong Kong==
==Hong Kong==
The rank of Sub-Inspector was eliminated in 1970.<ref>p.32 Gaylord, Mark S. & Traver, Harold ;;Introduction to the Hong Kong Criminal Justice System'' Hong Kong University Press, 1 June 1994 -</ref>
The rank of sub-inspector was eliminated in 1970.<ref>{{cite book |page=32 |last1=Gaylord |first1=Mark S. |last2=Traver |first2=Harold |title=Introduction to the Hong Kong Criminal Justice System |publisher=Hong Kong University Press |date=1 June 1994}}</ref>


==British South Africa Police==
==British South Africa Police==
The rank of sub inspector was replaced after the Rhodesian [[Rhodesia's Unilateral Declaration of Independence|Unilateral Declaration of Independence]] with three grades of Patrol Officer, Senior Patrol Officer and Section Officer with one, two, and three gold coloured bars respectively.<ref name="auto">{{Cite web|url=https://pipni.cz/|title=PIPNI.cz - Moderní hosting|first=PIPNI|last=s.r.o|website=pipni.cz}}</ref>
The rank of sub inspector was replaced after the Rhodesian [[Rhodesia's Unilateral Declaration of Independence|Unilateral Declaration of Independence]] with three grades of; patrol officer, senior patrol officer and section officer with one, two, and three gold coloured bars respectively.


== India ==
== India ==
[[Image:Police Sub-Inspector.png|thumb|90px|Insignia of an [[Indian Police Service|Indian Police]] officer with rank of police sub-inspector]]
{{Infobox military rank|branches=|abbreviation=SI, PSI|rank group=Non-Gazetted Officer (NGO) / Subordinate Police Service|rank=|higher rank=[[Inspector of Police]]|lower rank=[[Assistant sub-inspector of police]]|name=Sub-Inspector of Police|equivalents=[[Sergeant]]|service branch=<small>
A sub-inspector (SI) is generally in command of few police personnel (with [[head constable]]s, the equivalent of [[corporal]]s, commanding police outposts). He is the lowest ranked officer who under Indian Police rules and regulations can file a charge sheet in court, and is usually the first investigating officer. Officers subordinate to him cannot file charge sheets, but can only investigate cases on his behalf. He can be the station officer in some of the states like [[Kerala]].
* Civil Police (General Executive)
* Armed Reserve Police
* Technical
</small>|image=[[File:Police Sub-Inspector.png|50px]]|image_size=|caption=Sub-Inspector insignia: two stars with red-blue striped ribbon}}


A sub-inspector ranks above an [[assistant sub-inspector of police]] (ASI) and below an inspector. Most sub-inspectors are directly recruited into the police and have better educational qualifications than lower-ranking police officers.
A sub-inspector (SI) is generally in command of few police personnel but this is the junior in-charge of a [[Police station|Police Station]] (with [[head constable]]s, the equivalent of [[corporal]]s, commanding police outposts). It is the lowest rank of officer who, under Indian Police rules and regulations, can file a charge sheet in court, and is usually the first investigating officer. Officers subordinate to them cannot file charge sheets, but can only investigate cases on their behalf.


Specialised units such as the Central Armed Reserve Police Force, State Armed Reserve Police and Armed Battalions use the same rank, but generally these officers do not have any investigative powers. There are also specialist non-investigative officers in other Indian law enforcement agencies, such as sub-inspector (band) and sub-inspector (motor transport).
Sub-Inspectors function as principal sub-inspectors, serving as officers in charge of law and order, or as crime sub-inspectors responsible for crime investigation at the [[police station]] level. They may also be posted to specialised units, such as traffic, special branches, or other operational wings. They can serve as [[Station House Officer|station house officers]] in rural areas in some states.


The rank insignia for a sub-inspector is two (five point) stars, and a red and blue striped ribbon at the outer end of the shoulder straps. This is similar to the insignia of a [[subedar]] in the [[Indian Army]]. The assistant sub-inspector will have one (five point) star, and a red and blue striped ribbon at the outer end of the shoulder straps. This is similar to the insignia of a [[naib subedar]] in the Indian Army. The rank insignia for '''principal sub-inspector''' and '''additional sub-inspector''' are one and the same.
A sub-inspector ranks above an [[assistant sub-inspector of police]] (ASI) and below an [[Inspector of police#India|inspector of police]]. Most sub-inspectors are directly recruited into the police and have better educational qualifications than lower-ranking police officers.


For the post of Sub Inspector and Assistant Sub Inspector, Staff Selection Commission recruits eligible candidates on national level in various Central Armed Police Forces like BSF, CRPF, ITBP, CBI, SSB, CISF, and SI.
In [[Kerala Police]], the designation of grade sub-inspector (Grade SI) is awarded to officers promoted from the lower ranks after 25 years of service. Although they wear the same rank insignia as regular sub-inspectors, they lack powers of regular sub-inspectors such as independent investigative authority, and cannot submit charge sheets.<ref>{{Cite web |date=25 December 2023 |title=Grade SIs considered secondary: Police demand rectification of discrepancies in authority |url=https://english.mathrubhumi.com/news/kerala/grade-sis-considered-secondary-police-demand-rectification-of-discrepancies-in-authority-b407206e |access-date=2025-07-03 |website=mathrubhumi |language=en}}</ref><ref>{{Cite news |date=2019-10-28 |title=Kerala: Government relaxes grade norms for police officers |url=https://timesofindia.indiatimes.com/city/thiruvananthapuram/govt-relaxes-grade-norms-for-police-officers/articleshow/71787592.cms |access-date=2025-07-03 |work=The Times of India |issn=0971-8257}}</ref>


In 2017 total number of vacancies announced by SSC in CPO SI was 2221.
Specialised forces such as the [[Central Armed Police Forces]] (CAPFs), [[State Armed Police Forces]] and Armed Police Battalions use the same rank, but generally these officers do not have any investigative powers. There are also specialist non-investigative officers in the police forces, such as sub-inspector (band), sub-inspector (motor transport) and sub-inspector (telecommunication).
Apart from SSC, all states government police departments conduct examinations to recruit Sub Inspectors.
 
The rank insignia for a sub-inspector is two (five point) stars, and a red and blue striped ribbon at the outer end of the shoulder straps. This is similar to the insignia of a [[subedar]] in the [[Indian Army]]. An assistant sub-inspector has one (five point) star, and a red and blue striped ribbon at the outer end of the shoulder straps. This is similar to the insignia of a ''[[naib subedar]]'' in the [[Indian Army]]. The rank insignia for principal sub-inspector and additional sub-inspector are the same.
 
For the post of sub-inspector and assistant sub inspector, a [[Staff Selection Commission]] (SSC) recruits eligible candidates on national level in various [[Central Armed Police Forces]] like [[Border Security Force|BSF]], [[Central Reserve Police Force|CRPF]], [[ITBP]], [[Sashastra Seema Bal|SSB]], [[CISF]], and other Central Police Organisations, such as [[Central Bureau of Investigation|CBI]], [[Railway Protection Force|RPF]].
Sub Inspector of Central Armed Police Forces and State police Forces have same scale and pay level.
 
In 2024 Manvi Madhu Kashyap became India's first openly transgender police sub-inspector.<ref>{{Cite web|url=https://www.timesnownews.com/good-news/meet-manvi-madhu-kashyap-indias-first-transwoman-sub-inspector-article-111638815|title=Meet Manvi Madhu Kashyap, India's First Transwoman Sub-Inspector|date=10 July 2024|website=Times Now | author=Archisha Yadav}}</ref><ref>{{cite web | url=https://timesofindia.indiatimes.com/india/manvi-madhu-kashyap-becomes-indias-first-ever-transwoman-sub-inspector/articleshow/111639376.cms | title=Manvi Madhu Kashyap becomes India's first-ever transwoman sub-inspector | date=10 July 2024 | website=Times of India}}</ref>


== Malaysia ==
== Malaysia ==
[[Image:Sub Inspector of Police PDRM.svg|thumb|130px|Shoulder board of a [[Royal Malaysia Police]] officer with rank of police sub-inspector]]
[[Image:Sub Inspector of Police PDRM.svg|thumb|130px|Shoulder board of a [[Royal Malaysia Police]] officer with rank of police sub-inspector]]


In the [[Royal Malaysia Police]] (PDRM), the rank of sub-inspector is the senior-most of non-commissioned officers. They are also the lowest ranking police officers to wear their rank insignia on [[epaulettes]] on both shoulders. A sub-inspector of the PDRM ranks immediately above a [[Sergeant Major]] (SM) and below a Probationary Inspector (P/Insp).
In the [[Royal Malaysia Police]] (PDRM), the rank of sub-inspector is the senior-most of non-commissioned officers. They are also the lowest ranking police officers to wear their rank insignia on [[epaulettes]] on both shoulders. A sub-inspector of the PDRM ranks immediately above a [[sergeant major]] (SM) and below a probationary inspector (P/Insp).


== Nepal ==
== Nepal ==
In [[Nepal Police]], the rank of Sub Inspector is generally the next senior rank from Assistant Sub Inspector (ASI) and is less senior than an Inspector. Members holding the rank usually wear an epaulette featuring two silver stars, the same rank badge as a Sub Inspector in the [[Armed Police Force (Nepal)]].
In the [[Nepal Police]], the rank of sub inspector is generally the next senior rank from assistant sub inspector (ASI) and is less senior than an inspector. Members holding the rank usually wear an epaulette featuring two silver stars, the same rank badge as a sub inspector in the [[Armed Police Force (Nepal)|Armed Police Force]].


== Sri Lanka ==
== Sri Lanka ==
In the [[Sri Lanka Police Service]], sub-inspector of police (SI) ranks above that of police sergeant major (PSM) and below  an inspector (IP). Generally an SI would be the [[Officer in charge (police)|officer in charge]] (OIC) of a small [[police station]], a detachment of police personal or deputy OIC of a larger police station in a metropolitan area.
In the [[Sri Lanka Police Service]], sub-inspector of police (SI) ranks above that of police sergeant major (PSM) and below  an inspector (IP). Generally an SI is the officer in charge (OIC) of a small [[police station]], a detachment of police personal or deputy OIC of a larger police station in a metropolitan area.


Most sub-inspectors are directly recruited into the police service as [[probationary]] sub-inspectors for one year's training. The basic educational entry requirement is that an applicant has passed the [[Advanced Level (SL)|G.C.E Advance Level Examination]]. Annually certain number Other Officers who have come up through the ranks are promoted to rank of SI.         
Most sub-inspectors are directly recruited into the police service as [[probationary]] sub-inspectors for one year's training. The basic educational entry requirement is that an applicant has passed the [[Advanced Level (SL)|G.C.E Advance Level Examination]]. Annually, a number of other officers come up through the ranks and are promoted to rank of SI.         
The rank insignia for a sub-inspector is one star.
The rank insignia for a sub-inspector is one star.


== Romania ==
== Romania ==
In the [[Romanian Police]], subinspector is the lowest commissioned rank, below inspector, and corresponds to the former rank of police second lieutenant (''see [[Romanian Police#Ranks|Romanian Police Ranks]]'').
In the [[Romanian Police]], subinspector is the lowest commissioned rank, below inspector, and corresponds to the former rank of police second lieutenant (''see [[Romanian Police#Ranks|Romanian Police ranks]]'').


==Other police forces==
==Other police forces==
*[[Royal Hong Kong Police]]
*[[Royal Hong Kong Police]]
*[[Palestine Police]] (before 1948)<ref name="auto"/>
*[[Palestine Police]] (before 1948)
*[[Mossos d'Esquadra]]
*[[Mossos d'Esquadra]]



Latest revision as of 20:45, 6 February 2026


Sub-inspector (SI), or sub-inspector of police or police sub-inspector (PSI), is a rank used extensively in South Asia: in the police forces of Bangladesh, Pakistan, India, and Sri Lanka, which are primarily based on the British model. It was formerly used in most British colonial police forces and in certain British police forces as well. The rank usually was in charge of a police substation or assisted an inspector.

United Kingdom[edit | edit source]

The rank of sub-inspector was introduced into the Metropolitan Police in the late 19th century. It did not last long, being effectively replaced by station sergeant in 1890. Officers who already held the rank retained it, and were promoted to inspector as soon as a vacancy arose.

In the Metropolitan Police, a rank wearing one star was formerly officially known as a "station inspector" to distinguish it from the more senior rank of sub-divisional inspector that was abolished in 1949.

Canada[edit | edit source]

The Royal Canadian Mounted Police rank of sub-inspector was introduced in 1942 with the insignia of one star, similar to an army second lieutenant. This was changed in 1960 to three stars, similar to an army captain. It was disestablished in the reorganization of 1990, which eliminated the RCMP's subaltern ranks.[1]

Hong Kong[edit | edit source]

The rank of sub-inspector was eliminated in 1970.[2]

British South Africa Police[edit | edit source]

The rank of sub inspector was replaced after the Rhodesian Unilateral Declaration of Independence with three grades of; patrol officer, senior patrol officer and section officer with one, two, and three gold coloured bars respectively.

India[edit | edit source]

Sub-Inspector of Police
Sub-Inspector insignia: two stars with red-blue striped ribbon
Service branch
  • Civil Police (General Executive)
  • Armed Reserve Police
  • Technical
AbbreviationSI, PSI
Rank groupNon-Gazetted Officer (NGO) / Subordinate Police Service
Next higher rankInspector of Police
Next lower rankAssistant sub-inspector of police
Equivalent ranksSergeant

A sub-inspector (SI) is generally in command of few police personnel but this is the junior in-charge of a Police Station (with head constables, the equivalent of corporals, commanding police outposts). It is the lowest rank of officer who, under Indian Police rules and regulations, can file a charge sheet in court, and is usually the first investigating officer. Officers subordinate to them cannot file charge sheets, but can only investigate cases on their behalf.

Sub-Inspectors function as principal sub-inspectors, serving as officers in charge of law and order, or as crime sub-inspectors responsible for crime investigation at the police station level. They may also be posted to specialised units, such as traffic, special branches, or other operational wings. They can serve as station house officers in rural areas in some states.

A sub-inspector ranks above an assistant sub-inspector of police (ASI) and below an inspector of police. Most sub-inspectors are directly recruited into the police and have better educational qualifications than lower-ranking police officers.

In Kerala Police, the designation of grade sub-inspector (Grade SI) is awarded to officers promoted from the lower ranks after 25 years of service. Although they wear the same rank insignia as regular sub-inspectors, they lack powers of regular sub-inspectors such as independent investigative authority, and cannot submit charge sheets.[3][4]

Specialised forces such as the Central Armed Police Forces (CAPFs), State Armed Police Forces and Armed Police Battalions use the same rank, but generally these officers do not have any investigative powers. There are also specialist non-investigative officers in the police forces, such as sub-inspector (band), sub-inspector (motor transport) and sub-inspector (telecommunication).

The rank insignia for a sub-inspector is two (five point) stars, and a red and blue striped ribbon at the outer end of the shoulder straps. This is similar to the insignia of a subedar in the Indian Army. An assistant sub-inspector has one (five point) star, and a red and blue striped ribbon at the outer end of the shoulder straps. This is similar to the insignia of a naib subedar in the Indian Army. The rank insignia for principal sub-inspector and additional sub-inspector are the same.

For the post of sub-inspector and assistant sub inspector, a Staff Selection Commission (SSC) recruits eligible candidates on national level in various Central Armed Police Forces like BSF, CRPF, ITBP, SSB, CISF, and other Central Police Organisations, such as CBI, RPF. Sub Inspector of Central Armed Police Forces and State police Forces have same scale and pay level.

In 2024 Manvi Madhu Kashyap became India's first openly transgender police sub-inspector.[5][6]

Malaysia[edit | edit source]

Shoulder board of a Royal Malaysia Police officer with rank of police sub-inspector

In the Royal Malaysia Police (PDRM), the rank of sub-inspector is the senior-most of non-commissioned officers. They are also the lowest ranking police officers to wear their rank insignia on epaulettes on both shoulders. A sub-inspector of the PDRM ranks immediately above a sergeant major (SM) and below a probationary inspector (P/Insp).

Nepal[edit | edit source]

In the Nepal Police, the rank of sub inspector is generally the next senior rank from assistant sub inspector (ASI) and is less senior than an inspector. Members holding the rank usually wear an epaulette featuring two silver stars, the same rank badge as a sub inspector in the Armed Police Force.

Sri Lanka[edit | edit source]

In the Sri Lanka Police Service, sub-inspector of police (SI) ranks above that of police sergeant major (PSM) and below an inspector (IP). Generally an SI is the officer in charge (OIC) of a small police station, a detachment of police personal or deputy OIC of a larger police station in a metropolitan area.

Most sub-inspectors are directly recruited into the police service as probationary sub-inspectors for one year's training. The basic educational entry requirement is that an applicant has passed the G.C.E Advance Level Examination. Annually, a number of other officers come up through the ranks and are promoted to rank of SI. The rank insignia for a sub-inspector is one star.

Romania[edit | edit source]

In the Romanian Police, subinspector is the lowest commissioned rank, below inspector, and corresponds to the former rank of police second lieutenant (see Romanian Police ranks).

Other police forces[edit | edit source]

References[edit | edit source]

  1. Ross, David; Robin, May (1988). The Royal Canadian Mounted Police 1873-1987. Osprey Publishing. p. 37.
  2. Gaylord, Mark S.; Traver, Harold (1 June 1994). Introduction to the Hong Kong Criminal Justice System. Hong Kong University Press. p. 32.
  3. "Grade SIs considered secondary: Police demand rectification of discrepancies in authority". mathrubhumi. 25 December 2023. Retrieved 2025-07-03.
  4. "Kerala: Government relaxes grade norms for police officers". The Times of India. 2019-10-28. ISSN 0971-8257. Retrieved 2025-07-03.
  5. Archisha Yadav (10 July 2024). "Meet Manvi Madhu Kashyap, India's First Transwoman Sub-Inspector". Times Now.
  6. "Manvi Madhu Kashyap becomes India's first-ever transwoman sub-inspector". Times of India. 10 July 2024.