What Is a “Preponderance of the Evidence” in Arizona Car Accident Claims?

July 05, 20254 min read

If you're pursuing a car accident claim in Arizona — whether it’s a rear-end crash on the 60 or a pedestrian hit in South Tempe — one legal standard will shape your entire case: the preponderance of the evidence. It's a phrase you may hear from lawyers or insurers, but what does it really mean for you?

In basic terms, it’s the level of proof you need to win your personal injury claim. And understanding this concept could make or break your recovery — especially if the facts are disputed. With the right support from a Tempe car accident lawyer who knows Arizona law inside and out, you’ll be in a stronger position to meet this critical burden of proof.

Defining “Preponderance of the Evidence”

The phrase sounds complex, but it simply means this: your version of what happened is more likely true than not.

In numbers, imagine a scale tipping just 51% in your favor. That’s all you need to meet the burden of proof in a civil case like a car accident claim — not 100%, not even 75%. This is much lower than the “beyond a reasonable doubt” standard used in criminal trials.

So if you're claiming the other driver ran a red light in Downtown Tempe, your attorney doesn't have to prove it with video footage or a confession. They just need enough solid evidence — like witness statements, photos, or police reports — to make your account more convincing than theirs.

What Counts as Evidence?

To tip the scale in your favor, your legal team will gather:

  • Crash scene photos

  • Medical records and diagnoses

  • Witness statements

  • Police accident reports

  • Expert testimony (accident reconstruction, medical evaluation)

If, for example, you suffered a spinal cord injury in a rollover, your medical records won’t just show that you’re hurt — they help prove that the crash caused the injury. The clearer that link is, the easier it is to meet the preponderance standard.

Why It Matters So Much in Shared-Fault Cases

Arizona’s comparative negligence laws mean fault can be split between drivers. But even if you're found partially at fault, you can still win — as long as your evidence proves the other party was more negligent than not.

In a Tempe hit-and-run, for example, even if you're accused of unsafe parking or jaywalking, you can still recover compensation if your team shows that the fleeing driver created the greater danger. It’s all about whether your case edges out theirs by that crucial 1%.

Common Scenarios Where It Applies

You’ll need to prove your claim by a preponderance of the evidence in all types of accident cases:

Even rideshare crashes in Tempe require you to prove the driver or company acted negligently — and that your evidence is more compelling than theirs.

What If the Other Side Has Their Own Evidence?

In most cases, the other party — whether it’s the other driver or their insurer — will try to counter your claim. That’s why a strategic legal approach is essential. You’re not just stacking evidence; you’re crafting a narrative that aligns with the facts and makes sense to a claims adjuster or jury.

For example, in a complex paralysis injury case, the insurance company may claim the condition was preexisting. But if your records show a direct onset of symptoms after the crash, and your doctor supports that timeline, that’s enough to tip the scale.

How Your Attorney Builds the “51%” Case

Your legal team isn’t aiming for perfection — just persuasion. That’s the key to a civil claim. A good lawyer will:

  • Focus on the most credible evidence

  • Anticipate the insurer’s objections

  • Highlight inconsistencies in the other side’s story

  • Connect medical evidence directly to the crash

It’s especially important in complex claims like those involving traumatic brain injuries, where symptoms may be delayed or invisible in scans.

Don’t Let Insurance Companies Shift the Burden

Insurers may try to twist the standard by implying you must prove everything beyond doubt. That’s false — and it's a tactic designed to scare you into settling low or dropping your claim.

If your crash happened in North Tempe or Holdeman, and you’re facing pushback from insurers, remember: your only burden is to show your version is more likely true than not.


Final Thought

The “preponderance of the evidence” isn’t about perfection — it’s about clarity, credibility, and confidence. With the right legal support, you don’t need to prove the impossible. You just need to tell a story backed by facts that makes more sense than the alternative.

Back to Blog