8.1 Legal Duties at a Traffic Collision

Legal Duties at a Traffic Collision

A motor vehicle collision is an unexpected, high-stress event that demands composure, ethical responsibility, and strict adherence to statutory law. Under Thailand's legal framework, being involved in a traffic accident triggers immediate, mandatory legal duties for every motorist, passenger, and vehicle owner. Ignorance of these statutory obligations or panicking and departing the scene can transform what might have been a minor civil property damage claim into a grave criminal offense carrying mandatory imprisonment, heavy monetary fines, and permanent revocation of driving privileges.

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Section 78 of the Land Traffic Act B.E. 2522: The Core Statutory Mandate

The fundamental cornerstone governing road traffic collisions across Thailand is Section 78 of the Land Traffic Act B.E. 2522 (พระราชบัญญัติจราจรทางบก พ.ศ. 2522 มาตรา 78). It applies to any driver whose driving causes damage to another person or their property, whether or not the driver was at fault. Section 78 sets these duties: stop, give reasonable help, identify yourself and report immediately to a nearby official, and give your name, surname, address, and registration number to the injured party.

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Pillar 1: Mandatory Immediate Stopping (การหยุดรถทันที)

Every driver involved in an accident must bring their vehicle to an immediate, complete stop at or as near to the scene of the incident as safety allows without causing additional hazard or obstructing the flow of traffic.

• No Rolling Away: Coasting down the road, parking around the corner out of sight, or continuing to a destination before inspecting damage is strictly prohibited.
• Absolute Applicability: The stopping duty applies universally. Even if the other vehicle violated right-of-way, drove on the wrong side of the road, or made an illegal turn, you must still bring your vehicle to a complete stop immediately.

Pillar 2: Duty to Render Reasonable Medical Assistance (การให้ความช่วยเหลือตามสมควร)

If any person—whether an occupant of your vehicle, an occupant of another vehicle, a motorcyclist, or a pedestrian—sustains physical injuries, every involved driver has an active legal and humanitarian duty to provide appropriate assistance:

• Summoning Emergency Medical Services: Immediately dial 1669 to dispatch an emergency ambulance and qualified paramedical personnel.
• First Aid Within Competence: Render basic life-preserving care, such as applying direct pressure to stem severe arterial or venous bleeding, shielding victims from oncoming traffic, and keeping casualties calm and warm.
• Preventing Further Harm: Do not abandon an injured person or leave them lying exposed in active traffic lanes.

Pillar 3: Identification and Display of Information (การแสดงตัวต่อคู่กรณี)

Section 78 requires you to give the injured party your name, surname, and address, and your vehicle's registration number. Concealing your identity or giving false details breaks section 78.

Pillar 4: Report Immediately (การแสดงตัวและแจ้งเหตุต่อพนักงานเจ้าหน้าที่)

Section 78 requires the driver to identify themselves and report the incident to a nearby official immediately (ทันที):

• Police at the Scene: Tell the attending officer that you were the driver.
• No Police Present: Report to the nearest police station or officer as soon as you can, after helping anyone who is hurt.
• If You Are Injured: If you are taken to hospital, you have not fled. Contact the police, or have someone contact them, as soon as you are able.

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Mandatory Information Exchange Protocol

Section 78 legally requires only your name, surname, address, and registration number. In practice, drivers also exchange licence and insurance details so that the police report and insurance claims go smoothly:

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Required Documentation Checklist

1. Personal Identity: Full legal first and last name, national identification number (or passport number for foreign nationals), telephone contact numbers, and physical residential address.
2. Driving Licence Credentials: Driving licence number, licence type (e.g., 2-year temporary or 5-year personal), issuing Department of Land Transport provincial office, and expiration date.
3. Vehicle Registration Data: Vehicle registration number, province displayed on the license plate, vehicle make, model, color, and chassis number.
4. Compulsory Motor Insurance (Por Ror Bor / พ.ร.บ.): Insurance company name, policy number, and certificate expiration date. In Thailand, all registered motor vehicles must carry compulsory third-party bodily injury insurance under the Protection for Motor Vehicle Victims Act B.E. 2535 (1992).
5. Voluntary Commercial Insurance: If carried, the policy number, insurer name (e.g., Viriyah, Dhipaya, Bangkok Insurance), and the insurer's emergency dispatch telephone hotline (e.g., Class 1, 2+, 3+).

Practical Tip for Disputed Incidents: If the other driver refuses to cooperate, acts aggressively, or threatens violence, do not engage in a physical altercation. Remain inside your locked vehicle, photograph their vehicle registration plate and driver from a safe distance, and immediately dial 191 for police intervention.

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Collisions with Unattended Vehicles or Roadside Property

Collisions do not always involve two occupied, moving vehicles. Striking a parked vehicle on a soi, hitting a residential perimeter wall, damaging a municipal lamppost, or impacting a highway guardrail creates specific statutory responsibilities under Section 78:

The Mandatory Written Notice

If you strike an unattended vehicle or stationary property whose owner is not present at the scene:

1. Stop Immediately: You are strictly forbidden from driving away simply because nobody witnessed the impact.
2. Leave a Prominent Written Contact Note: Securely attach a legible written note in a prominent location—such as under the windshield wiper blade of the damaged parked car or on the damaged structure. The note must contain:
   • Your full legal name and current telephone number.
   • Your vehicle registration plate number and province.
   • Your insurance provider and policy details.
   • A brief statement acknowledging the incident.
3. Prompt Police Notification: In addition to leaving the note, report the incident to the nearest police station immediately. Leaving a note without notifying the police does not fully fulfill statutory requirements if substantial property damage occurred.

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Hit-and-Run: The Statutory Presumption of Fault

One of the most consequential legal provisions in Thai road traffic law is codified in Section 78, Paragraph 2 of the Land Traffic Act:

"If the driver or the person controlling the vehicle flees or does not stop the vehicle to render assistance... it shall be presumed that such driver or person controlling the vehicle is the party at fault for the occurrence of the collision."

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Reversal of the Burden of Proof

Normally, the party alleging an offence must prove it. The second paragraph of section 78 changes that: if a driver flees or does not identify themselves to officials at the scene, the law presumes that driver is the offender (ให้สันนิษฐานว่าเป็นผู้กระทำความผิด).

• The fleeing driver is presumed to be at fault for the crash.
• Even if the non-fleeing driver actually ran a red light or crossed the centerline prior to the collision, the driver who fled forfeits their presumption of innocence regarding fault.
• The fleeing motorist bears the heavy legal burden of rebutting this statutory presumption in court with compelling, undeniable evidence (such as dashcam footage or forensic reconstruction).

Criminal Penalties for Fleeing the Scene

Under section 160 of the Land Traffic Act, failing to carry out the section 78 duties is punishable by:

1. Any Collision: Up to 3 months in prison, or a fine of 2,000 to 10,000 THB, or both.
2. If the Failure Leads to Grievous Harm or Death: Up to 6 months in prison, or a fine of 5,000 to 20,000 THB, or both.

Those penalties are for leaving and not reporting. The crash itself is prosecuted separately under the Criminal Code:

• Section 291 (negligently causing death): Up to 10 years in prison and a fine of up to 200,000 THB.
• Negligently causing injury or grievous harm is also an offence, with lower penalties.

Civil Liability

Under section 437 of the Civil and Commercial Code, a person in possession or control of a motor vehicle is liable for damage it causes, unless they prove the damage came from force majeure or from the injured person's own fault. The fault-based rule in section 420 also applies. Compulsory Por Ror Bor insurance pays victims' first medical and death benefits; any further damages are claimed from the liable driver or their insurer.

Administrative Sanctions & Demerit Points

• Traffic Demerit Points: A hit-and-run (ขับรถชนแล้วหนี) costs 3 of 12 points under the police points system.
• Licence Suspension: At 0 points, the licence is suspended for 90 days. Courts can also suspend or revoke a licence as part of a sentence.
• Vehicle Seizure (section 78): Officers may seize the vehicle of a driver who flees until the case ends or the driver is found. If the owner does not come forward within 6 months, the vehicle is forfeited to the state.

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Statutory Obligations by Collision Scenario

The following comparison table outlines the legal duties, reporting timelines, and liabilities across different accident scenarios:

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Examination Distinctions & Defensive Practices

When preparing for the computerized driving theory test, keep these critical distinctions in mind:

• Fault Does Not Negate Duty: Never assume that being in the right excuses you from stopping. If a reckless motorcycle crashes into your legally stopped car, you must still stop, check on the rider, render assistance, and identify yourself. Driving away makes you a hit-and-run offender under Section 78.
• Moving Vehicles to Clear Traffic: In a minor crash with no injuries, photograph the positions first, then move the vehicles off the traffic lanes if both drivers agree or a police officer says so.
• Hospital Is Not Fleeing: A driver taken away by ambulance has not fled. Contact the police as soon as you are able.