Police have issued dozens of defect notices after conducting simultaneous raids on a number of Baiada chicken processing factories across New South Wales, after one of the company's truck drivers was charged over a fatal hit-and-run in Sydney.

The 36-year-old driver will face court next month over the death of a 60-year-old woman at Brookvale on Sydney's northern beaches almost a fortnight ago.

Police said the driver did not stop when he allegedly struck the woman as she was walking across a pedestrian crossing.

The woman was then hit by a second truck and dragged along the road for some distance before the 57-year-old driver of that vehicle stopped to help her.

The accident triggered police raids at several sites owned by Baiada, the parent company of Steggles and Lilydale Free Range Chicken.

The Joint Traffic Taskforce examined 135 trucks and issued 45 defect notices, 23 of which were for faulty brakes.

They also issued 25 infringement notices and discovered five trucks that had had their speed limiters tampered with, to allow the vehicles to travel at more than 100 kilometres an hour.

It follows a similar raid on the company's Girraween depot a week ago.

Police examine 135 trucks in safety checks

A total of 45 defect notices were issued. ( Supplied: NSW Police )

Chief Inspector Phil Brooks said police and inspectors from the Roads and Maritime Service (RMS) examined trucks at the company's Newcastle, Tamworth and Griffith sites on Wednesday morning.

"The Joint Traffic Taskforce has had to activate to make sure the state of the fleet involved is entirely safe," he said.

"In this case, we've come together very quickly and isolated those trucks that are posing a risk to other road users.

"Anyone involved in this sort of activity where a crash has lead to a death on our roads can expect this sort of very swift response to make sure those fleets are very safe on our roads."

Paul Endacott from the RMS said inspectors and police would work with the company to ensure its truck fleet and contractors complied with safety regulations.

"It is the duty of heavy vehicle operators and their supply chain partners to ensure that safety is paramount and in terms of roadworthiness it's the operator's duty to ensure these vehicles are fit and proper and safe to operate on our roads," Mr Endacott said.

Truck breaches 'unacceptable', Baiada says

In a statement, a spokesman for Baiada said the company took responsibility for ensuring that all trucks carrying its goods were "safe and roadworthy".

"Baiada considers breaches identified during police compliance operations to be unacceptable," the spokesman said.

The company said it had also launched a program to improve its processes and compliance across its facilities, which will include a full review of transport operations and procedures.

"We have written to the over 200 transport companies Baiada engages with seeking evidence that their fleets are safe and meet all legal requirements.

"Any contractors who do not comply will have their agreement with Baiada terminated.

"We are looking forward to meeting with police and the RMS about these measures and working with them to ensure future heavy vehicle compliance at our sites."