BD Police SI Written key terms

The date in 1952 when students in Dhaka were shot by police during a campaign to make Bangla a state language of Pakistan. It is observed as International Mother Language Day and Shaheed Day.

The political movement from 1948 to 1952 demanding that Bangla be recognized as a state language of Pakistan. Its climax came on 21 February 1952, when protesters were killed in Dhaka.

A national day of mourning observed on 21 February to honor those killed in the 1952 language movement. Flags are flown at half-mast and people walk barefoot to the Shaheed Minar.

The monument built near Dhaka Medical College to commemorate the martyrs of the 1952 language movement. It is the focal point of Shaheed Day observances every year.

The armed struggle of 1971 through which Bangladesh won independence from Pakistan. It lasted about nine months, ending with the surrender of Pakistani forces on 16 December 1971.

One of the eleven operational areas into which Bangladesh was divided for military command during the 1971 war. Each sector was led by a sector commander reporting to the provisional government.

The combined guerrilla and regular forces of Bangladesh that fought against the Pakistani army in 1971. It included members of the East Bengal Regiment, EPR, police, and civilian freedom fighters.

The provisional government of Bangladesh formed in April 1971, which directed the liberation war. It was sworn in at Baidyanathtala in Meherpur, a place later renamed Mujibnagar.

The speech delivered by Sheikh Mujibur Rahman at the Racecourse Ground in Dhaka on 7 March 1971. It called for preparation for independence and is recognized by UNESCO as documentary heritage.

The city where a country's central government sits. Dhaka has served as the capital of Bangladesh since independence in 1971, and earlier as the capital of East Pakistan.

The northern part of the Indian Ocean lying south of Bangladesh. It gives the country its long coastline and supports fishing, shipping, and offshore gas exploration.

The main branch of the Ganges inside Bangladesh, flowing southeast to join the Meghna. It divides the country's southwest from the rest and is important for irrigation and transport.

The world's largest mangrove forest, shared by Bangladesh and India along the coast. It is famous for the Royal Bengal Tiger and was declared a UNESCO World Heritage Site.

Rights guaranteed to every person by Part III of the Constitution of Bangladesh, such as equality before law and freedom of speech. Courts can enforce them through writ petitions.

A formal petition asking the High Court Division to enforce a fundamental right or correct an unlawful official action. It is filed under Article 102 of the Constitution.

The supreme written law of Bangladesh, adopted in 1972 and amended several times since. It sets out the structure of government, fundamental rights, and the powers of state organs.

The release of an accused person from custody while the case continues, usually against a bond or surety. Courts grant it in bailable offences as of right and in non-bailable ones at their discretion.

First Information Report: the written record police prepare when they first receive information about a cognizable offence. It starts the formal investigation and is signed by the informant.

The process by which police gather evidence about an alleged offence, including statements, exhibits, and expert reports. It ends with either a charge sheet or a final report to the court.

Information and material presented in court to prove or disprove a fact in dispute. It may be oral testimony, documentary, or physical evidence, and courts weigh its relevance and reliability.

Lawful custody of a person by police or prison authorities, whether during investigation or after conviction. Remand is a court-authorized extension of police custody for questioning.

A period of police custody granted by a magistrate so that officers can interrogate a detained accused. It is distinct from judicial custody and requires a written order each time.

Orderly conduct and obedience to lawful authority within a police force. Breaches are handled through departmental proceedings, which are separate from criminal prosecution.

The principles of right conduct expected of police officers, including honesty, fairness, and restraint in the use of force. Ethical failures damage public trust and can lead to disciplinary action.

A policing approach in which officers work with residents to identify and prevent local problems. It relies on trust, information sharing, and joint problem-solving rather than enforcement alone.

Crimes committed through computers or networks, such as hacking, online fraud, and harassment. Bangladesh addresses them mainly through the Cyber Security Act and related digital laws.

Software written to damage, disrupt, or gain unauthorized access to a computer system. Common types include viruses, worms, ransomware, and spyware, and they spread through files and links.

A security system that monitors and filters network traffic according to set rules. It blocks unauthorized connections while allowing approved ones, forming a barrier between networks.

An electronic method of verifying that a message or document came from a stated sender and was not altered. It uses public-key cryptography and supports legal validity of electronic records.

An organized collection of data stored so that it can be searched, updated, and retrieved efficiently. Police records, case files, and citizen information are often held in such systems.

Channels such as newspapers, television, radio, and online outlets that gather and distribute news to the public. They shape opinion and act as a check on state authority.

The global organization founded in 1945 to maintain peace and promote cooperation among states. Bangladesh joined it in 1974 and contributes troops to its peacekeeping missions.

The conduct of relations between states through negotiation, representation, and agreement. It covers treaties, trade, and dispute settlement, usually carried out by foreign ministries and embassies.

A comparison of two quantities showing how many times one contains the other. It is written with a colon or as a fraction and is used to share amounts in given proportions.

A way of expressing a number as a fraction of one hundred. It is used to compare changes, calculate interest, and interpret data in percentages.

The sum of a set of values divided by the number of values. It summarizes a group with one figure but can be distorted by unusually high or low values.

The rule that a verb must match its subject in number and person. A singular subject takes a singular verb, while compound or collective subjects follow specific conventions.

Two ways of presenting an action depending on whether the subject performs or receives it. The active voice is direct and clear; the passive voice shifts focus to the object or the action itself.

The sentence that states the main idea of a paragraph, usually placed first. It guides the reader and is followed by supporting details that develop the point.

The quality of writing in which ideas connect logically and flow smoothly from one to the next. It is achieved through clear organization, linking words, and consistent focus.