Truthful References from pervious employers.

There should be a law where previous employers can give a truthful reference about an employee without being at threat of being sued.
Specially in the healthcare department, as the background of staff is important. As theses people need to be trusted with vulnerable people.

Petitions need to call on the Government or Parliament to take a specific action. You could start a new petition explaining clearly what you would like the Government or Parliament to do.