Rajasthan Police SI study materials
Rajasthan Police SI study resources

Rajasthan Police SI key terms

Rajasthan Police SI · Get comfortable with the vocabulary.

FIR (First Information Report)

The first written record police make of a cognizable offence, based on information given at the police station. It sets the investigation in motion and is registered under Section 154 of the CrPC.

Related: Cognizable Offence, Zero FIR, Charge Sheet
Zero FIR

An FIR registered by a police station that lacks territorial jurisdiction over the crime, later transferred to the proper station. It ensures no delay in beginning investigation, especially in serious offences.

Related: FIR (First Information Report), Territorial Jurisdiction
Cognizable Offence

An offence for which police may register a case and arrest without a warrant or magistrate's order. Examples include murder, robbery and theft. Non-cognizable offences require a magistrate's direction for investigation.

Related: FIR (First Information Report), Arrest Warrant
Charge Sheet

The final report police submit to a magistrate after investigation, listing the accused, evidence and offences. If evidence is insufficient, a closure or final report may instead be filed.

Related: FIR (First Information Report), Cognizable Offence
Arrest Warrant

A written order by a magistrate authorising police to arrest a named person. It must be shown to the arrested person, and arrest without warrant is allowed only in specified circumstances.

Related: Cognizable Offence, Remand
Remand

Judicial authorisation to keep an arrested person in custody while investigation continues. Police must produce the accused before a magistrate within 24 hours of arrest, excluding travel time.

Related: Arrest Warrant, Bail
Bail

Release of an accused from custody, usually on furnishing security, pending trial. Bailable offences give a right to bail; in non-bailable offences the court exercises discretion.

Related: Remand, Anticipatory Bail
Anticipatory Bail

Pre-arrest protection granted by a Sessions Court or High Court to a person apprehending arrest in a non-bailable offence. It may impose conditions and can be cancelled later.

Related: Bail, Remand
Culpable Homicide

Causing death of a person by doing an act with the intention of causing death, or with knowledge that the act is likely to cause death. It is defined in Section 299 of the IPC.

Related: Murder, Mens Rea
Murder

Culpable homicide that falls within the specific aggravated descriptions in Section 300 of the IPC, such as intention to cause death or causing death by a cruel act. Punishment is under Section 302.

Related: Culpable Homicide, Mens Rea
Mens Rea

The guilty mental state required for criminal liability, such as intention, knowledge, rashness or negligence. Most IPC offences require some form of mens rea along with the prohibited act.

Related: Actus Reus, Culpable Homicide
Actus Reus

The physical element of a crime, meaning the prohibited act, omission or conduct. Criminal liability generally requires both actus reus and the corresponding mental state.

Related: Mens Rea
Dying Declaration

A statement by a person about the cause of their death or circumstances of the transaction resulting in death. It is admissible as an exception to the hearsay rule under Section 32 of the Evidence Act.

Related: Hearsay, Admissible Evidence
Hearsay

Evidence based on what a witness heard from someone else rather than what they personally observed. It is generally inadmissible, subject to recognised exceptions such as dying declarations.

Related: Dying Declaration, Admissible Evidence
Admissible Evidence

Evidence that is relevant and not excluded by law, so a court may consider it in deciding the case. Relevance and admissibility are distinct: relevant evidence may still be excluded.

Related: Hearsay, Burden of Proof
Burden of Proof

The obligation of a party to prove a fact in issue. In criminal trials the prosecution generally bears it and must prove guilt beyond reasonable doubt.

Related: Admissible Evidence, Presumption of Innocence
Presumption of Innocence

The principle that an accused is treated as innocent until the prosecution proves guilt. It underlies the high standard of proof and the benefit of doubt given to the accused.

Related: Burden of Proof
Fundamental Rights

Constitutionally guaranteed rights in Part III, enforceable through writs under Article 32 or Article 226. They include equality, freedom, protection of life and personal liberty, and constitutional remedies.

Related: Writ Petition, Directive Principles
Directive Principles

Guidelines in Part IV of the Constitution directing state policy towards social and economic welfare. They are not directly enforceable in courts but are fundamental in governance.

Related: Fundamental Rights
Writ Petition

A petition asking a court to issue a constitutional remedy such as habeas corpus, mandamus, certiorari, prohibition or quo warranto. The Supreme Court acts under Article 32 and High Courts under Article 226.

Related: Fundamental Rights, Habeas Corpus
Habeas Corpus

A writ requiring a person detaining another to produce the detainee before the court and justify the detention. It protects personal liberty against unlawful custody.

Related: Writ Petition, Fundamental Rights
Territorial Jurisdiction

The geographical area within which a police station or court has lawful authority to act. Cases are ordinarily investigated and tried where the offence occurred.

Related: Zero FIR, Beat Policing
Beat Policing

A police strategy where officers are assigned defined small areas (beats) for patrolling, contact with residents and gathering local intelligence. It aims at prevention and community trust.

Related: Territorial Jurisdiction, Community Policing
Community Policing

An approach where police work with residents, local bodies and volunteers to prevent crime and solve neighbourhood problems. Examples include mohalla committees and police-public liaison groups.

Related: Beat Policing, Community Liaison Group
Community Liaison Group

A local body of residents and police representatives that discusses safety concerns and coordinates preventive action in an area. It is commonly formed under community policing schemes.

Related: Community Policing
Crowd Control

Managing large gatherings to prevent disorder, using measures from barricades and announcements to tear gas and lathi charge in graduated escalation. Minimum necessary force is the guiding principle.

Related: Section 144 CrPC, Unlawful Assembly
Section 144 CrPC

An order by a magistrate prohibiting or restricting assembly of four or more persons in a specified area to prevent danger to public peace. It is temporary and issued in urgent situations.

Related: Crowd Control, Unlawful Assembly
Unlawful Assembly

An assembly of five or more persons with a common object of using criminal force, intimidating or committing an offence. Members of such an assembly can be prosecuted under the IPC.

Related: Crowd Control, Section 144 CrPC
Panchnama

A written record of a search, seizure or scene inspection prepared by police in the presence of independent witnesses. It documents what was found and where, and supports later evidence.

Related: Admissible Evidence, FIR (First Information Report)
Cybercrime

Crime committed using computers, networks or digital devices, such as online fraud, identity theft, hacking and cyberstalking. Complaints can be filed on the national cybercrime reporting portal.

Related: Phishing, Digital Signature
Phishing

A fraud where a message, call or fake website tricks a person into revealing passwords, OTPs or bank details. Genuine institutions never ask for such confidential data by email or phone.

Related: Cybercrime, OTP
OTP

One-Time Password, a short code valid for a single transaction or login, sent to a registered phone or email. Sharing it with anyone allows misuse of the account.

Related: Phishing, Cybercrime
Digital Signature

An electronic method of verifying the authenticity and integrity of a digital document using cryptographic keys. It confirms the signer's identity and detects later tampering.

Related: Cybercrime
Firewall

Hardware or software that filters network traffic according to rules, blocking unauthorised access while allowing permitted communication. It is a basic perimeter security control.

Related: Malware
Malware

Software designed to harm or exploit a device or network, including viruses, worms, trojans and ransomware. Antivirus software and timely updates help reduce risk.

Related: Firewall, Cybercrime
Sandhi (संधि)

Hindi में दो वर्णों के मेल से होने वाला परिवर्तन। जैसे विद्या + आलय = विद्यालय। इसके स्वर, व्यंजन और विसर्ग संधि जैसे भेद होते हैं।

Related: Sandhi Viched, Sandhi
Sandhi Viched (संधि विच्छेद)

संधि से बने शब्द को उसके मूल वर्णों में अलग करना। जैसे सूर्योदय का विच्छेद सूर्य + उदय है। परीक्षा में यह अकसर पूछा जाता है।

Related: Sandhi
Samas (समास)

दो या अधिक शब्दों के मेल से बने संक्षिप्त पद का नाम। जैसे राजपुत्र में राजा और पुत्र हैं। इसके तत्पुरुष, द्वंद्व, बहुव्रीहि आदि भेद हैं।

Related: Sandhi
Muhavara (मुहावरा)

ऐसा वाक्यांश जिसका अर्थ शब्दों के सामान्य अर्थ से भिन्न होता है। जैसे आँखों में धूल झोंकना का अर्थ धोखा देना है।

Related: Lokokti (लोकोक्ति)
Lokokti (लोकोक्ति)

लोक अनुभव पर आधारित सूक्ति या कहावत, जो पूर्ण वाक्य के रूप में प्रयुक्त होती है। जैसे अंधों में काना राजा।

Related: Muhavara (मुहावरा)
Synonym

A word with a meaning close to or the same as another word in a given context, such as 'brave' and 'courageous'. Exact interchangeability depends on usage and register.

Related: Antonym, Idiom
Antonym

A word expressing the opposite meaning of another word, such as 'ancient' and 'modern'. Antonyms may be graded (hot/cold) or complementary (alive/dead).

Related: Synonym
Idiom

A fixed expression whose meaning is not predictable from its individual words, such as 'to bite the bullet'. Idioms are tested through fill-in-the-blank and meaning questions.

Related: Synonym, Phrasal Verb
Phrasal Verb

A verb combined with a preposition or adverb that together carry a new meaning, such as 'give up' or 'look after'. The particle often changes the original sense of the verb.

Related: Idiom
Syllogism

A form of deductive reasoning with two premises and a conclusion, often drawn as circles (Venn diagrams). A conclusion is valid only if it follows necessarily from the premises.

Related: Deductive Reasoning, Venn Diagram
Venn Diagram

A diagram using overlapping circles to show relationships among sets. It is a quick tool for checking whether syllogistic conclusions are definitely true, possible or false.

Related: Syllogism
Deductive Reasoning

Reasoning from general statements to a specific conclusion that must follow if the premises are true. It contrasts with induction, which generalises from particular observations.

Related: Syllogism
Blood Relation

A reasoning problem that asks how people in a family described by statements are related. Drawing a family tree with standard symbols avoids confusion over gender and generation.

Related: Direction Sense
Direction Sense

A reasoning problem tracking a person's path using north, south, east and west turns to find final position or distance. Sketching the route usually simplifies the solution.

Related: Blood Relation
Average

The sum of a set of quantities divided by their number. If every value is increased or decreased by the same amount, the average changes by that amount.

Related: Percentage, Ratio and Proportion
Percentage

A fraction expressed out of 100, used to compare quantities on a common scale. Successive percentage changes do not simply add; they must be applied one after another.

Related: Average, Ratio and Proportion
Ratio and Proportion

A ratio compares two quantities of the same kind; a proportion states that two ratios are equal. Unitary method problems often reduce to setting up a proportion.

Related: Percentage, Average
Time, Speed and Distance

The relation distance = speed × time, used to solve problems on trains, boats and relative motion. Converting km/h to m/s requires multiplying by 5/18.

Related: Average, Ratio and Proportion
Simple Interest

Interest calculated only on the original principal for the whole period, using the formula P × R × T / 100. It does not earn interest on previously accrued interest.

Related: Compound Interest
Compound Interest

Interest calculated on the principal plus accumulated interest, so the amount grows faster than under simple interest. It is computed period by period on the changing balance.

Related: Simple Interest
Rajasthan Diwas

Rajasthan Day, observed on 30 March, marking the final stage of the merger of princely states into the State of Rajasthan in 1949. It is a common current-affairs and state-history question.

Related: Praja Mandal
Praja Mandal

People's movements in the princely states of Rajasthan that demanded civil rights and representative government before 1947. They contributed to the integration of the states after Independence.

Related: Rajasthan Diwas