A motorcycle rider can be partly or entirely responsible for a crash. Another driver can also be responsible for turning across the motorcycle’s path, merging into its lane or striking it from behind. The allocation should follow what each person did, not assumptions about riders.
The important distinction is between an allegation and proof. Saying that a motorcycle was speeding does not establish its speed or explain how speed contributed to the collision. The same is true of a driver’s statement that the motorcycle was not visible.
Look at the movements that brought the vehicles together
A rider’s unsafe speed, following distance, lane movement, impairment, equipment problem or loss of control may contribute to a crash. Those possibilities need to be tested against the road, vehicle damage, witnesses and available recordings.
Other drivers have obligations too. Under R.S. 32:104, a turn or movement right or left must be reasonably safe. When a turn takes a vehicle from its highway, the statute requires a continuous signal during at least the final 100 feet. R.S. 32:79 requires a vehicle on a marked multilane road to stay as nearly as practicable within its lane and to leave it only after the driver determines that the movement is safe.
A left turn across a rider’s path may therefore require close attention to sight distance, timing and the available gap. A disputed lane change may depend on where the motorcycle was before the other vehicle moved. Our Baton Rouge motorcycle accident page discusses common collision patterns.
Helmet use and collision fault are different questions
R.S. 32:190 generally requires motorcycle operators and passengers to wear a qualifying helmet secured with a chin strap. A dispute about helmet use may bear on a claimed head injury in some circumstances. It does not explain why another driver made an unsafe turn.
Preserve the helmet and damaged gear as evidence, along with the motorcycle. Medical proof is needed to assess an injury argument; an accusation about protective equipment does not establish the extent or cause of an injury by itself.
Why the percentage of fault matters
The version of Civil Code article 2323 effective January 1, 2026 bars recovery when the injured person’s negligence is 51% or more. Below that threshold, damages are reduced by the person’s percentage of fault. Earlier crashes may be governed by the former pure comparative-fault system, which generally reduced recovery without that threshold. Check the dates and governing law before applying the current rule. Our related guide explains Louisiana’s 51% comparative-fault bar in more detail.
As an illustration, $100,000 in proven damages reduced for 20% rider fault leaves $80,000 before insurance and other issues are considered. Under the current rule, 51% rider fault instead bars recovery. These figures illustrate the calculation, not the value of a particular case.
The fault inquiry is not necessarily limited to the people sued. Article 2323 calls for determining the fault of all persons who caused or contributed to the loss, including specified nonparties, immune persons and people whose identities are not reasonably ascertainable. Evidence that a third vehicle forced an evasive maneuver can matter. A bare suggestion that an unknown driver existed is not enough to establish that person’s role.
Test competing accounts before accepting a percentage
A crash report can identify witnesses, insurers, citations and initial accounts. It may also contain mistakes. An officer’s conclusion is not automatically binding in a civil claim, particularly when the officer arrived after impact.
Scene photographs, debris, gouges, tire marks, damage locations and final vehicle positions can test the accounts. Video and electronic records may help establish timing, but each source has limits. Keep witness contact information and note where each witness was positioned. For a fuller discussion, see how motorcycle fault evidence is evaluated.
Get appropriate medical care and report symptoms accurately. Notify insurers as required, but do not guess about facts you did not observe or sign a broad release without understanding it. Keep treatment records, expenses, work-loss records and notes about functional changes. Photographs and preservation should be undertaken only when safe.
A fault finding does not settle every coverage question
The available payment depends on the policies, limits, exclusions, insured status and proven damages. Uninsured or underinsured motorist coverage may matter when the responsible driver lacks sufficient insurance, but the policy and any valid coverage selection or rejection must be reviewed. Medical-payments coverage, health insurance and disability benefits can affect how expenses are handled without deciding civil fault.
Supported medical expenses, lost earnings, reduced earning capacity, pain, disability, scarring and property damage may be recoverable. Each claimed loss needs evidence connecting it to the crash.
Most delictual injury actions arising on or after July 1, 2024 generally fall under the two-year period in Civil Code article 3493.1. Earlier crashes may have a shorter deadline, and special claims can follow different rules. Do not wait for insurance negotiations to settle the deadline question.
Contact Babcock Injury Lawyers if you need help evaluating a proposed fault percentage or preserving the evidence needed to dispute it.
Last reviewed: September 26, 2026. Sources checked: September 27, 2026.
This article provides general Louisiana legal information. Fault, damages, insurance coverage and deadlines depend on the facts and applicable law.