What to Do With Dash Cam Footage After an Accident

What to Do Immediately After an Accident

Once everyone is safe, the priority is making sure the recording still exists in its original form. Dash cams are designed to keep recording, and a file that is not protected can disappear on its own.

1. Confirm the footage was saved

Check the camera or its app and play back the moments around the collision. Confirm the file exists, covers the impact, and is readable before you drive away or shut the vehicle down.

2. Protect it from loop recording

Most dash cams use loop recording: when storage fills, the oldest unprotected clips are automatically overwritten. Use the camera's lock, protect or event function on the relevant clip. If you are unsure, remove the memory card and stop recording to it.

3. Create multiple backups

Keep the memory card or original file untouched, and copy the footage to at least two separate places — for example a computer and a cloud drive or external disk. A single copy on one device is a single point of failure.

4. Preserve the original file

The original recording should remain exactly as the camera wrote it: same file, same name, no trimming, re-encoding, or export. Work only from copies.

5. Save surrounding footage

Clips from before and after the impact often carry the context that matters: approach speed, signal state, lane changes, braking, and what each vehicle did once the collision was over. Preserve those files too, not just the impact clip.

6. Preserve GPS, timestamps, and other metadata

Some dash cams record GPS position, speed and time alongside the video. Not every camera captures this, and accuracy varies. Where it exists, keep the accompanying data files with the video rather than exporting the video alone.

Should You Send Dash Cam Footage to Your Insurance Company?

Many drivers do share footage with their insurer, because video can shorten a disputed claim. It is a decision worth making deliberately rather than automatically.

Footage may help:

• Clarify what happened in the seconds before impact
• Establish the positions of the vehicles involved
• Show traffic signals and signage
• Document the impact itself
• Support a timeline of events
• Document another vehicle leaving the scene

Video is neutral: it can also capture information unfavourable to the person who recorded it, such as speed, phone use, or audio inside the vehicle. Review the footage before deciding what to do, and understand what it shows.

Can Dash Cam Footage Help Prove Who Was at Fault?

Dash cam video can help establish the facts surrounding a collision, but it does not by itself determine legal liability. Fault is decided by insurers, authorities or courts, using the footage as one piece of evidence among others.

Video may show:

• Traffic light and signal state
• Lane position and lane changes
• Vehicle movement and direction
• Following distance
• Braking and reaction
• Road, weather and visibility conditions
• The impact sequence
• The other driver's actions before and after the collision

Should You Give Dash Cam Footage to Police?

Circumstances and legal requirements vary by jurisdiction. There is no single answer that applies everywhere, and it helps to separate three different situations.

In all three cases, footage relevant to an accident should be preserved rather than deleted.

Should You Edit Dash Cam Footage After an Accident?

Do not alter the original recording. Editing, trimming or re-encoding the original can raise questions about authenticity and may remove embedded data.

Creating a shorter copy for convenience is fine, as long as the complete original is retained and you can say clearly what the copy is.

How Long Should You Keep Dash Cam Footage After an Accident?

There is no universal retention period that is appropriate for every incident. How long footage matters depends on the claim, the dispute and the jurisdiction.

As a practical rule, preserve relevant footage while:

• An insurance claim remains active
• Liability remains disputed
• Litigation is possible or ongoing
• Authorities or attorneys may still need the evidence

Storage is inexpensive compared with losing the only record of what happened. When in doubt, keep it.

What If Your Dash Cam Footage Was Deleted or Overwritten?

Act quickly: every new file written to the storage device reduces the chance of recovering what was lost.

• Stop unnecessary recording to that storage device
• Avoid repeatedly writing new files to the card
• Check the dash cam app or cloud storage, if your camera has one
• Check protected, locked or event folders on the card
• Consider professional data recovery when the footage is important

Recovery is never guaranteed, and results depend on the device and how much was written afterwards.

Learn more: How to Recover Deleted Dash Cam Footage (coming soon)

What If the Other Driver Disputes What Happened?

Conflicting accounts are common, and without a record the outcome often comes down to which version sounds more convincing. Preserved video shifts the conversation to what was actually captured: positions, signals, speed of events and the sequence of the impact.

Keep the original intact, note the date, time and location the footage came from, and share copies rather than the source file.

Learn more: What to Do When the Other Driver Lies About an Accident (coming soon)

What If It Was a Hit-and-Run?

When the other driver leaves, the footage you already have may be the only identifying record. Preserve everything around the event, not just the impact.

• Vehicle appearance: make, model, colour and damage
• Direction of travel after leaving the scene
• Any frame where the license plate is visible
• Nearby vehicles that may also have recorded the incident
• Timestamps for the moments before and after
• Surrounding footage that shows the approach and departure

Learn more: Dash Cam Evidence After a Hit-and-Run (coming soon)