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Operation Lalang

History of Malaysia

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 2, 2026
Entity authorityQ1015909
Source-derived summary

Operation Lalang (Malay: Operasi Lalang, also called Ops Lalang; lalang is Malay for cogon grass and this was taken to mean "Operation Weeding") was a major crackdown undertaken by the Royal Malaysian Police from 27 October to 20 November 1987, ostensibly to prevent the occurrence of race riots in Malaysia. The operation saw the arrest of 106 to 119 people—political activists, opposition politicians, intellectuals, students, artists, scientists and others—who were detained without trial under the Internal Security Act (ISA). It was the second largest mass arrest in Malaysian history involving the ISA since the 13 May riots 18 years earlier. It also involved the revoking of the publishing licenses of two dailies, The Star and the Sin Chew Jit Poh and two weeklies, The Sunday Star and Watan.

The Malaysian government argued that racial tensions had reached a dangerous level within the country, forcing the government to arrest those responsible for stoking the tensions. The notion that race riots were imminent however is contested, and it is widely believed that the operation was designed to control the political opponents of the Prime Minister Mahathir Mohamad. The event, which was followed by the 1988 Malaysian constitutional crisis the following year, marked the beginning of a period of Mahathir's authoritarian rule.

Causes

A number of political developments and issues preceding the operation had caused mounting political and racial tensions in the country. According to the Malaysian government's white paper explaining the arrests, various groups had exploited the government's "liberal" and "tolerant" attitude and played up "sensitive issues", thereby creating racial tension in the country. This racial tension, the government said, forced the government to act "swiftly and firmly" to contain the situation.

Editorial summary

The public source identifies “Operation Lalang” as history of Malaysia. This brief keeps that definition visible, then builds a research path around Operation, Lalang and History.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1987, 1988—that can be checked directly. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Operation, Lalang and History providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Operation Lalang”, the useful work is to connect “history of Malaysia” to the records capable of establishing context and consequence.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 2, 2026. The linked authority identifier is Q1015909. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1987 and 1988.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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Source & attribution

This entry incorporates text from Operation Lalang” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.