Class Actions

About Class Actions

Class actions in Australia can be commenced by one (or more) of the persons representing a class, where:

  • 7 or more persons have claims against the same person;
  • and the claims of all those persons are in respect of, or arise out of, the same, similar or related circumstances; and
  • the claims of all those persons give rise to a substantial common question of law or fact.

The proceedings are normally run as an open class and the lead plaintiff represents all persons whose information was breached.

In cases we act in, Centennial Lawyers will only be paid if the action is successful, as defined in the costs agreement normally with the lead plaintiff or lead plaintiffs.


Centennial Lawyers are also investigating the following class actions

Liberal Party Class Action

Centennial Lawyers are investigating a class action on behalf of those Liberal Councillors whose nomination forms were not lodged by Liberal Party Head Office.

Service NSW Data Breach

The recent Service NSW data breach has affected around 100,000 people, exposing sensitive personal and health information to hackers.

Centennial lawyers are examining whether a class action is viable against Service NSW.

Medibank & ahm data breach investigation

We are asking all current and former Medibank and ahm members to register here.

Centennial Lawyers succeeded in recovering damages for employees of NSW Ambulance that were affected by a high profile data breach of NSW Ambulance Workers Compensation files.

In that case, the sensitive personal and health information of NSW Ambulance workers was compromised when the NSW Ambulance Service allowed a contractor widespread access to its records and databases. The NSW Ambulance contractor was able to gather and sell the personal and health information of NSW Ambulance employees.

The class action was one of the few of its kind in Australia that dealt with a massive data breach by a government agency. The lead plaintiff, represented by Centennial Lawyers, reached a favourable settlement agreement with NSW Ambulance to conclude the proceedings, which was approved by Chief Justice Ward of the Equity Division in the NSW Supreme Court. The NSW ambulance employees who were class members received correspondence about receiving compensation and we were proud to have achieved this result.

"This is a fantastic result for 108 NSW ambulance workers who have had their workers’ compensation files unlawfully accessed and extracts of it sold to at least one law firm."
Centennial Lawyers Principal Solicitor George Newhouse