Digital Proof Disappears Fast, So Here's How to Save it

If you’ve been in a car accident, your mind might be racing with all the things you need to do to check for injuries and preserve your legal rights to compensation. First, check for injuries—yours, your passengers, and any other involved parties. If anyone needs immediate medical help, call 911. 

Second, you want to be sure you can make the best possible case for compensation if the crash wasn’t your fault. That means thinking about your smartphone’s GPS log, or whether a nearby business has a security camera that might have captured the incident. These considerations might not be top of mind in the immediate aftermath of an accident, but they should be. 

The reality is that digital evidence is as powerful as any eyewitness testimony, sometimes even more so. Text messages, surveillance footage, wearable device data, and even your car's onboard computer are all generating information that could make or break a personal injury claim. The problem is that much of this evidence is fragile. It can be overwritten, deleted, or lost within hours or days if you don't take steps to preserve it.

Following these 10 critical steps immediately after an accident could protect digital evidence that can make or break the outcome of your case.

Why does digital evidence matter?

If you’re outside your own home, there’s a pretty high likelihood that you’re being recorded. Traffic cameras capture intersections, dashcams roll continuously, fitness trackers log your heart rate and step count, your phone knows where and when you were pretty much anywhere, and it also knows who you were communicating with at a given time. 

Witness testimony can provide an account of what happened at a specific time. It’s clouded by human bias (even unintentionally), faded memories, and other factors that could affect the accuracy of a person’s account. 

But recorded data provides objective, timestamped proof of what happened, when it happened, and how it affected your life afterward. Courts and insurance companies increasingly rely on digital records to corroborate or challenge the claims that parties make about an accident. For instance, if your daily step count suddenly drops after an accident, this is concrete evidence that your mobility has decreased. An insurance adjuster would have a hard time refuting your claim on the basis that it’s exaggerated when the data is right there in front of them. 

By the same token, digital evidence isn’t always on your side. Insurance companies routinely comb social media profiles, text messages, and app data to look for anything that might contradict your claim. A single photo of you smiling at a family barbecue could be taken out of context and used to argue that your injuries aren't as serious as you say. All of this is why preservation of digital evidence—including how and when you do so—is crucial to your case, starting from the first moments following an accident.

These 10 steps can guide you through the digital presentation and preservation of your claim.

10 Steps to securing your digital data for a lawsuit

Step 1: Photograph and video-record the scene immediately

Use your phone to document the accident scene from every angle before anything gets moved, cleaned, or altered. Capture vehicle damage, road conditions, traffic signals, skid marks, debris, weather conditions, and any visible injuries. Take wide shots for context and close-ups for detail.

This is important because accident scene conditions can change rapidly. Vehicles get towed, debris is swept away, and weather shifts. The photos and videos in the first few minutes could be the only visual record of what the scene actually looked like at the time of the accident. Be sure your phone’s location services and automatic timestamps are enabled so each image includes embedded metadata showing exactly when and where it was taken.

Step 2: Preserve it! Don’t delete data from your phone

Your phone contains a treasure trove of potential evidence… everything from call logs and texts to GPS and location history, app activity, and more. But after an accident, you must resist the urge to clean up your phone or delete messages, even if they seem irrelevant. 

Any texts you exchange with the other driver, witnesses, or your employer in the hours or days following an accident can:

• Act as informal admissions
• Establish timelines
• Document your immediate physical condition

Even a text to a friend that says, “I just got rear-ended and my neck is killing me,” creates a contemporaneous record of your injuries.

You must back up your phone to the cloud or to a computer’s hard drive as soon as possible. If your phone is damaged in the accident, a backup ensures you don’t lose critical data.

Step 3: Save GPS and location data

Check this information:

• Your phone’s GPS records
• Navigation apps like Google Maps or Waze
• Ride-share history, if applicable

These records can place you at a specific location at a particular time. This evidence is particularly valuable if the other party disputes your version of where or when the accident happened. 

You should screenshot the relevant entries and backup the data on these apps, because some of this information is only retained for a limited time before it’s automatically purged.

Step 4: Identify and request surveillance footage

Survey the accident scene. Be observant.

• Are there traffic cameras at the intersection? 
• Security cameras on nearby businesses? 
• Ring cameras at a proximate home?

Any of these devices could capture footage of the incident, or the moments leading up to it. 

This is one of the steps to take immediately, as it’s time-sensitive. Many surveillance systems are on a loop, which means they automatically record over older footage within 24 to 72 hours. If you don’t act fast, the footage could be overwritten and gone forever. 

Personal injury attorneys today are quick to note that identifying and securing nearby video evidence has become an urgent priority. 

These recordings can transform a complicated “he-said-she-said” situation into a clear-cut case. 

If you can’t request these recordings right away, contact your lawyer. Your attorney can send a formal preservation letter to ask businesses to save the data.

Step 5: Secure your dashcam or in-vehicle camera footage

If your vehicle has a dashcam, you should immediately save or download the footage. Alternatively, check your dashcam settings. Many dashcams record on a loop, like surveillance cameras, and will overwrite the file the next time the system begins to record again. 

Remove the memory card, or transfer the files to a computer or cloud storage, right away. If the other vehicle in the crash has a dashcam, let your attorney know this immediately. Most commercial vehicles are required to have them. This is also true for EDRs, or event data recorders, which are a vehicle’s “black box” that captures data about speed, braking, and other vehicle behavior in the moments before the collision.

Step 6: Download and save your wearable device data

If you wear a smartwatch or fitness tracker, the data recorded around the time of the accident—and in the days and weeks that follow—can be powerful evidence.

These devices can show heart-rate spikes at the moment of impact, dramatic drops in daily step counts, disrupted sleep patterns, and reduced exercise after a crash. These patterns demonstrate an objective picture of how an injury has affected your daily life. 

Self-reported pain is subjective; it will be up to a jury or insurance adjuster to determine whether your pain is as severe as you say it is. A wearable device captures data that is difficult to question. The data is time-stamped and measurable evidence that’s hard for an insurer to dispute. 

When you export your data from Apple Health, Google Fit, Fitbit, or whatever app you use, be sure to save it in a format that preserves time stamps and raw numbers.

Step 7: Preserve email and written communications

Email conversations are formal documentation of conversations related to your accident and injuries. Preserve any email that includes:

• Correspondence with insurance companies 
• Conversations with your employer about missed work
• Information to or from your property manager (in a premises liability case) 
• Correspondence with healthcare providers related to your accident injuries or other health conditions

Take these steps:

• Forward relevant email to a dedicated folder or personal backup email address 
• Print hard copies of anything important or relevant
• Keep records organized and dated

These communications accomplish the following:

• Establish timelines
• Document the severity of your injuries
• Show the financial impact of the accident (through lost wages and medical bills)

Step 8: Lock down social media

This isn’t technically about preserving evidence. It’s about preserving your privacy. In other words, you can protect yourself from having your own online activity used against you. 

Insurance companies and defense attorneys will routinely monitor a claimant’s social media profiles to look for posts, photos, check-ins, or comments that might undermine their claim. For example, if they see you went to a concert a few days after the accident, they might argue that you weren’t in too much pain. Or, if you’re checking in at the gym, they might presume your mobility isn’t as limited as you say. Even a cheerful status update could be taken out of context—even though we know that a person in pain can also be happy sometimes.

Your best move after an accident is to avoid posting on social media at all. Or, if you can’t abide by that, then at least you must avoid posting anything related to your accident, your injuries, or your physical activities. 

Tighten your privacy settings, but don’t delete existing posts.

Deleting content after an accident could be considered spoliation of evidence, which could carry serious legal consequences that include sanctions, adverse inferences, and even having your case dismissed.

Step 9: Contact an attorney and send preservation letters

One of the most important and beneficial steps in this process is retaining a personal injury lawyer early. An experienced lawyer knows what additional digital evidence might exist and how to secure it before it disappears.

Your attorney will likely send a formal preservation letter (also called a litigation hold notice or spoliation letter) to any party who might have relevant evidence. 

That could include:

• The other driver
• Businesses with surveillance cameras
• Commercial trucking companies with EDR data
• Ride-share companies
• Government agencies that operate traffic cameras

This letter puts the recipient on notice that they are required to retain all evidence related to the incident. If they destroy or fail to preserve that evidence after receiving the letter, they might face court sanctions. This includes the possibility that a judge could instruct the jury to assume the lost evidence would have been unfavorable to them.

Step 10: Create a digital evidence log

This can be a simple, written log that documents every piece of evidence you’ve identified. Include where it’s stored and when you preserved it. It can be a simple spreadsheet or handwritten list—nothing fancy. Include the following:

• The type of evidence (photo, video, text message, GPS data, etc.)
• Source device or platform
• Date and time it was captured
• Where the backup is stored

This serves two purposes: It helps your attorney to quickly understand the full scope of available evidence, and it helps establish a chain of custody. In other words, it’s a record that shows the evidence hasn’t been altered or tampered with since its preservation. A court requires digital evidence to be authenticated to be admissible; a clean chain of custody makes the process smoother.

Do you need to be a technology expert to manage your digital evidence?

No, definitely not. But you should recognize that the digital evidence that exists in the first hours after an accident might be the most valuable asset in your entire case. Protecting it should be treated with the same urgency as seeking medical attention.

Even so, most of these steps require nothing more than a smartphone and a few minutes of deliberate action. The evidence is already there, you just need to make sure it’s preserved to tell your story.