Section 380: Fouling water kept for public use
Statutory text (Thai original)
ผู้ใดทำให้เกิดปฏิกูลแก่น้ำในบ่อ สระ หรือที่ขังน้ำอันมีไว้สำหรับประชาชนใช้สอย ต้องระวางโทษจำคุกไม่เกินหนึ่งเดือน หรือปรับไม่เกินหนึ่งหมื่นบาท หรือทั้งจำทั้งปรับ หมายเหตุ: [อัตราโทษ แก้ไขเพิ่มเติมโดยมาตรา ๖ แห่งพระราชบัญญัติแก้ไขเพิ่มเติมประมวลกฎหมายอาญา (ฉบับที่ ๒๒) พ.ศ. ๒๕๕๘]
English translation
Whoever fouls the water in a well, a pond or a reservoir kept for public use shall be liable to imprisonment not exceeding one month, or a fine not exceeding ten thousand baht, or both.
ThaiLawOnline translation, written from the Thai original and verified
Firm annotation
Section 380 has three elements: (1) fouling the water, (2) in a well, a pond or a reservoir, (3) kept for public use. The third element is the one that decides most cases. The water source must be one kept for public use, so fouling a private pond is a matter for criminal damage under Section 358 or for the civil courts, not for this section. The three named sources are also a closed list of standing water, so a river, a canal or an irrigation channel is not within them; pollution of a flowing watercourse is dealt with under the Public Health Act B.E. 2535 and the Enhancement and Conservation of National Environmental Quality Act B.E. 2535 rather than here. The verb needs no measurement of harm: it is enough that the water has been made foul, and no illness or actual use of the water need be shown. The penalty is up to one month, or a fine of up to 10,000 baht, or both. Section 375 is the neighbouring provision and covers causing a public drain, watercourse or sewer to become obstructed or inconvenient, by a fine only. As a petty offence within Section 102, Section 104 removes the requirement of intention, Sections 105 and 106 exclude attempts and supporters, and Section 95(5) gives a one-year prescription period. The current rate was set by Section 6 of the Penal Code Amendment Act (No. 22) B.E. 2558.
Why this matters in practice
Exposure is up to one month, or a fine of up to 10,000 baht, or both, so this is a petty offence under Section 102 with the consequences that follow: no intention need be proved under Section 104, an attempt and a supporter are not punished under Sections 105 and 106, and prosecution is barred one year after the act under Section 95(5). The element that decides the case is the character of the water source, which must be a well, a pond or a reservoir kept for public use. Fouling a private pond is not this offence, though it may be criminal damage under Section 358. No illness, no complaint and no proof that anyone used the water is required, because the offence is complete once the water has been made foul. Cleaning or restoring the source is a sensible practical response to a complaint but does not undo the offence.
Cited in 2 Supreme Court decisions (1962 to 1972)
Selected citing decisions
- Decision 1108/2505 (1962)
- Decision 12/2515 (1972)
This list is selected automatically, weighted towards judgments that turn on this section rather than ones that merely recite it when passing sentence. It has not yet been reviewed by the firm.
Counted across the firm's corpus of 83,652 Supreme Court decisions, 1921 to 2026. The count is complete; the stated year range trims rare outliers so it describes where the citations actually sit. These figures are computed by us and are not official court statistics. How we count these, and what we measured
Related guides on ThaiLawOnline
Cite this section
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Plain citation
Penal Code, s. 380 (Thailand) -
Academic citation
Penal Code (Thailand), s. 380. ThaiLawOnline, https://www.thailawonline.com/thai-penal-code/section-380/ (accessed 17 August 2026). -
Thai citation
ป.อ. มาตรา 380 -
Permalink
https://www.thailawonline.com/thai-penal-code/section-380/ -
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<blockquote cite="https://www.thailawonline.com/thai-penal-code/section-380/"><p>Whoever fouls the water in a well, a pond or a reservoir kept for public use shall be liable to imprisonment not exceeding one month, or a fine not exceeding ten thousand baht, or both.</p><footer>Penal Code, s. 380 (Thailand) — <a href="https://www.thailawonline.com/thai-penal-code/section-380/">ThaiLawOnline</a></footer></blockquote>
The Thai text is authoritative. The English is an unofficial translation by ThaiLawOnline, free to reuse with attribution.