You don't have to prove fault on the day of the crash, but what you notice then can matter later. Lanes, signals, where the cars stopped and what was said all feed into the insurer's view. For people in Cherrybrook, we explain how fault is weighed in a NSW claim and help you decide whether the question needs a lawyer. Often it doesn't. When it does, we'll connect you with one.
The Hills · Car accident lawyer help
Partly at fault? Car crash lawyer help for Cherrybrook
Plain answers on shared blame, seatbelt arguments and disputed fault, then the right help for your claim.
Postcode: 2126

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Where fault leaves your claim: four common positions
The insurer will form a view about who caused the crash, and that view shapes the rest of your claim. Find the situation closest to yours below, then check the detail with someone who can see your evidence.
Situation 1
You were not at fault
If another driver caused the crash, their vehicle's CTP insurer deals with your claim. Having no share of the blame keeps the most options open, including a later damages claim where the injury goes beyond the threshold.
Situation 2
You were partly at fault
Partial fault is common and usually a question of degree. A finding of contributory negligence can lower weekly payments beyond 52 weeks and reduce damages, so the percentage the insurer picks is worth checking.
Situation 3
You were wholly or mostly at fault
Being at fault doesn't leave you with nothing. Statutory benefits generally continue for the first 52 weeks, but a damages claim is off the table. The same applies once contributory negligence is found to be greater than 61%.
Situation 4
No one was clearly at fault
Some crashes happen without any driver being at fault, for example after a sudden medical episode or an unforeseeable mechanical failure. NSW has 'blameless accident' rules that may let an injured person claim in some of these cases. They are technical, so get advice.
General information, not legal advice. Fault and contributory negligence are decided on the evidence. Time limits apply.
Cherrybrook: local roads, hospitals and evidence of fault
Showground Road, Old Northern Road and Pennant Hills Road have busy intersections. When fault is argued after a crash there, the lights, turning arrows and any witness who stopped are the details to note. Intersections along New Line Road and Castle Hill Road can involve turning arrows, give-way signs and changing lights. If fault is argued, a photo of the signals and lane markings taken on the day is hard to dispute. Hospitals serving the area include Hornsby Ku-ring-gai Hospital. Wherever you were first seen, describe the crash accurately and consistently. Insurers compare early medical notes with later accounts when they decide who caused a collision.
With Cherrybrook Metro station and bus stops on New Line Road nearby, buses and other commercial vehicles are a regular part of local traffic. Many carry cameras, so if one was involved in your crash, ask early whether the footage was kept.
- Region
- The Hills
- Postcode
- 2126
- Main roads
- New Line Road · Castle Hill Road
- Nearest public hospital
- Hornsby Ku-ring-gai Hospital
- Getting around
- Cherrybrook Metro station · bus stops on New Line Road
Do you need a lawyer for a fault question?
A lawyer isn't a box to tick after every crash. When fault is clear and accepted, many people run their own claim. When it's argued, split or pinned on you, advice is often worth having.
Often worth talking to a lawyer
- The other driver changed their story after the crash
- Fault is split between several drivers and no insurer will take the claim
- You were a passenger and both drivers blame each other
- Your injury may be more than a threshold injury and fault will decide damages
You may not need one
- Your question is about treatment, not about who caused the crash
- Fault isn't argued and your benefits are being paid
- You only need help identifying the at-fault vehicle's insurer
Before any fault argument, get the right care. We can connect you with doctors and allied health experienced with CTP claims, who can treat you and complete a clear Certificate of Fitness whatever happens with fault.
Not quite your situation?
- If you're not yet sure whether this is an injury claim, a damage claim or something else, the car accident claim page helps you tell them apart. Car accident claim in Cherrybrook
- If you've already decided to engage a solicitor and want to know how the file runs stage by stage, see the car accident solicitor page. Car accident solicitor in Cherrybrook
- If you weren't in a car at all but on a motorbike, a bicycle or on foot, the motor vehicle accident page covers your situation. Motor vehicle accident lawyer in Cherrybrook
The first hours after a crash, and the question of fault
The insurer that decides fault will not have been there. It relies on what people recorded at the time. So record what you can: the time, the weather, the road surface, the lane markings and the direction each vehicle was travelling. If a witness stopped, ask whether they'll give their name. A note written that evening is worth more than a memory months later.
- The lane each vehicle was in, and any lane change
- Where each car came to rest, photographed before moving if safe
- Names and phone numbers of anyone who saw it
- Exactly what the other driver said, written down that day
Read next:What to do after a car accident in NSW
Passengers and fault
A passenger isn't driving, so a passenger is rarely found at fault for the crash itself. The claim goes to the CTP insurer of whichever vehicle was at fault. If your own driver caused it, that's the Green Slip of the car you were in, even when the driver is a friend or family member. The insurer responds to the claim, not the driver personally.
Children in the car are in a special position. Whoever caused the crash, a child aged 16 or under at the time can keep receiving treatment and care for as long as they need it. Usually a parent or guardian lodges the claim for them. Fault can still matter for other entitlements, so keep the police record with the child's medical records.
Read next:Passenger injury claims

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We'll look at the evidence of fault and your deadlines, and connect you with an independent lawyer only if your claim needs one.

Several vehicles, several insurers: working out fault
Chain collisions are where fault gets complicated. The driver who started it may carry most of the blame, but a driver behind who was following too closely can share it. Each vehicle has its own Green Slip insurer. Your task is to record every vehicle involved and the order of the impacts; the insurers' task is to sort out which of them responds.
The police event number is often the thread that ties a multi-vehicle crash together. It links the drivers, the vehicles and any statements taken at the scene. Keep it with your registration notes. CTP Assist, a free SIRA service on 1300 656 919, can help identify an insurer when you're unsure, though it won't decide fault for you.
Read next:Multi-vehicle accidents
How fault is shown after a car crash
Fault is decided on evidence, not on who sounds more certain. The usual pieces are the police event number and any police record, photos of where the cars stopped, the damage to each vehicle, dashcam footage and independent witnesses. No single piece is always decisive. Together they usually show what happened, even when the drivers tell different stories.
The police event number links your claim to the official record of the crash. The insurer can use it to check who was involved and what was reported. It's worth getting even if the crash seemed minor and police didn't attend, because a record made close to the time is harder to dispute than one pieced together later.
- The police event number and any police record
- Photos of both vehicles' damage and final positions
- Independent witnesses' names and numbers
- Your own written account from the first days
Save footage early
Shops, buses and homes with cameras often keep footage only briefly. Ask in writing as soon as you can, giving the date, time and exact spot.
Seatbelts, speed and your share of fault
Insurers look at more than who hit whom. They may ask whether you wore a seatbelt, how fast you were going and whether you were distracted. The finding is usually a percentage. A small one trims damages and later weekly payments. One greater than 61% has a much bigger effect, because it rules out damages altogether.
Check the percentage
A contributory negligence finding is usually expressed as a percentage. A few points either side of the 'mostly at fault' line can decide whether damages are possible at all, so ask how the figure was worked out.
Read next:Can I claim if I was partly at fault?
What fault changes in your claim
Think of the claim in two parts. Statutory benefits come first and, for most people, don't depend on who caused the crash. Common law damages come later and depend heavily on it: another driver must have been at fault, you must not have been mostly at fault, and the injury must be more than a threshold injury. That is why fault is worth attention early.
Rules change
Your accident date decides which rules apply. Accidents before 1 December 2017 fall under the older 1999 Act, and some limits changed again on 1 April 2023.
Read next:At fault vs not at fault
When fault is disputed
If the other driver says you caused the crash, or the insurer won't accept that the other driver did, the evidence decides it. This is the point where an independent lawyer is often worth talking to. They can test the insurer's reasons, gather what's missing and advise whether to ask for a review. Insurers make decisions under the scheme rules, and those decisions can be challenged.
Read next:At-fault self-check
Frequently asked questions
Keep the original file safe first. Many dashcams record over older footage, so copy it to another device or cloud storage straight away, without trimming or editing it. Tell the insurer you have footage, and give it to police if they're investigating. If fault is disputed, the footage can be one of the strongest pieces of evidence you have, because it shows the crash rather than anyone's memory of it.
Not automatically, although it can help. A traffic fine or a criminal charge is a separate process from your claim, and the insurer generally looks at all the evidence rather than relying on it alone. A conviction can be strong support for your account. A charge that is dropped, or no charge at all, doesn't mean the other driver wasn't at fault. Keep a copy of any police paperwork you receive.
Generally, yes. You claim against the CTP insurer of the vehicle at fault, which here is the Green Slip insurer of your friend's car. The claim is against the insurer, not against your friend personally. Passengers are rarely found at fault, though contributory negligence can still be raised in limited cases, for example if you knew the driver had been drinking. Your friend may be asked for their account, which is normal.
Usually less than people fear. Being partly to blame is called contributory negligence. It doesn't stop you claiming statutory benefits. It can reduce weekly payments after 52 weeks, and it reduces any damages by your share. It only removes damages altogether if your share is found to be greater than 61%. Ask how the insurer reached its percentage, and get advice if it seems high.
Not by itself. An apology can be mentioned, but insurers decide fault on the evidence as a whole: police records, damage patterns, photos, footage and witnesses. People apologise for many reasons, and drivers sometimes change their account later. Write down exactly what was said and when, then collect the harder evidence. If fault is disputed, those records will count for more than the apology.
'Mostly at fault' means your contributory negligence is found to be greater than 61%. If you were wholly or mostly at fault, weekly payments and treatment and care are generally limited to the first 52 weeks, and you can't claim common law damages. For accidents from 1 April 2023, most people in that position still receive those first 52 weeks of statutory benefits. Because so much turns on the line, a finding close to it is worth having reviewed.
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CTP Lawyer is not a law firm. This page is general information, not legal advice; the independent lawyer you speak with can advise on your own situation.