"They acknowledge they released it. They explain, in their terms, why they released it, and regardless of the fact they clearly agree that it probably breached the Privacy Act, that's implied in the letter. But they don't go on to say that they change, in fact they go on to say that they reserve the right to do it again."
Mr Walker had spoken out over the difficulties of juggling family life and work and the further impact casual hours would have.
Ms Kelly said the letter argued the information was released as it showed how family-friendly the port was an employer.
She said the information was released to keep port workers from speaking out.
"Employers collect private information about their employees, they do that for their business, they're allowed to collect it and store it. The law requires them to keep that private. And basically they fired a shot at these workers to try and shut them up."