Serious Injury in an Unprotected Left Turn Ends Without Prosecution After a Pre-Indictment Settlement

Case Overview

A driver making an unprotected left turn at a signalized intersection collided with an oncoming motorcycle, and the motorcyclist suffered injuries that required long-term treatment. The driver was investigated for causing injury in a traffic accident. Rather than contest liability, the defense focused on how Korean law treats this category of accident: where the collision is not classified among the major-negligence categories, and the injured party states before indictment that they do not wish the driver punished, the prosecution cannot bring the case to court. Working toward a settlement before indictment, the firm obtained the motorcyclist's expression of that intent, and the prosecution closed the matter with a no-prosecution disposition. No criminal trial followed.

Background

The client was driving to work in the morning and turned left at an intersection controlled by traffic signals, but without a separate protected left-turn phase. In Korean traffic practice this is an "unprotected left turn": a driver may turn left on the through green signal, but must yield to oncoming traffic. The client began the turn while the through signals for both directions were green. The client did not adequately check the oncoming lane and noticed the motorcycle late. The motorcycle was traveling straight with the right of way, and its front struck the right side of the client's vehicle.

The motorcyclist had little physical protection compared with the occupant of a car and sustained injuries requiring extended treatment. The investigating authorities treated the injuries as serious. The client was investigated for violation of the Traffic Accident Processing Special Act (causing injury).

Criminal Allegation

The allegation was that the client caused injury by failing to exercise the care required when turning left across oncoming traffic. The matter fell under the Traffic Accident Processing Special Act rather than the general Criminal Act, because injury caused by a motor vehicle is handled under that special statute. The authorities did not treat the conduct as signal violation. They classified it as ordinary occupational negligence: a failure to properly observe oncoming traffic before turning.

That classification mattered. Korean law handles traffic accidents that cause injury on different tracks, and the disposition available to a driver depends heavily on which track applies.

Key Legal Issues

Three points governed the case.

First, liability for the collision itself was difficult to dispute. When a left-turning vehicle collides with a vehicle traveling straight through the same intersection, the left-turning driver is generally expected to yield. The injured party was a motorcyclist with little protection, and the injuries were serious. A defense built on denying fault would have been weak and could have hardened the injured party's position.

Second, Korean law generally bars prosecution for a traffic accident causing injury when the injured party expresses a wish not to punish the driver. This is not a discount for settling; it is a procedural condition on prosecution. If that intent is properly recorded before indictment, the case must end at the investigation stage.

Third, the bar has an exception. If the accident falls within the twelve major-negligence categories, which include signal violation, drunk driving, excessive speeding, and similar conduct, the case may proceed even if the parties settle. The client's advantage was that the authorities had not classified the left turn as signal violation. The unprotected left turn permitted a turn on the through green signal; the issue was the client's failure to check oncoming traffic, not disregard of a signal.

One further rule had to be separated out. Comprehensive automobile insurance can, in ordinary injury cases, bar prosecution; that protection does not apply where the injury is serious. Here, the serious-injury classification removed any reliance on the insurance bar. It did not, however, remove the injured party's non-punishment bar. Those are two distinct rules, and confusing them is a common reason drivers assume a serious-injury case cannot be resolved before trial.

Defense Strategy

The defense began with the legal character of the accident rather than with a contest over percentages of fault. Early review of the investigation record confirmed that the authorities had charged only the Traffic Accident Processing Special Act offense based on negligent failure to observe oncoming traffic, and had not treated the matter as signal violation. That meant the major-negligence exception did not close the route to a pre-indictment resolution.

The team then concentrated on the injured party. In a serious-injury accident, a settlement is rarely easy. If the defense opens by arguing about relative fault, the injured person may disengage, and the opportunity to end the case before indictment can be lost. The firm therefore put recovery first: it addressed the client's responsibility for the harm and worked toward terms that dealt with the injured party's treatment and losses, rather than minimizing the client's conduct.

That approach produced a settlement agreement containing the injured party's clear statement that the client should not be punished. Timing was as important as the terms. A settlement reached after indictment does not spare the defendant from standing trial; an expression of non-punishment placed in the investigation record before indictment allows the case to be closed by the prosecution. The agreement was submitted at that stage so the prosecutor could consider it when deciding the disposition.

Outcome

The prosecutor issued a non-indictment decision on the ground of no right to prosecute. The stated reason was the injured party's wish not to punish the client, and the basis was the settlement agreement contained in the investigation record. The client was notified of the disposition through the standard notice of the reasons for non-indictment.

No prosecution followed, and the client did not stand trial.

The result should be read precisely. A no-right-to-prosecute disposition is not a finding that the client was innocent. It means that, because the injured party did not want punishment, the legal condition for bringing the case to court was not satisfied. The case was closed at the investigation stage, and the client continued daily life and driving without a criminal conviction.

What This Case Shows

This case illustrates why the legal category of a traffic accident matters as much as the severity of the injuries. A serious-injury charge may look as though it must end in court, but Korean law separates two questions: whether the comprehensive-insurance bar applies, and whether the injured party wishes to punish the driver. Serious injury can eliminate the first without eliminating the second.

It also shows why timing is decisive. The same settlement has different consequences depending on whether it is reached before or after indictment. Where the goal is to keep a client out of court, the non-punishment expression must be secured and placed in the investigation record at the investigation stage.

Finally, the case is a reminder that outcomes depend on the specific facts. The major-negligence categories are limited, and an accident classified as signal violation, drunk driving, or another listed category may proceed even after settlement. Injury severity, the manner of the collision, and the timing of any agreement all affect the available disposition. No particular result can be guaranteed.