Secondary boycotts to be revisited

It has been reported that the ACCC has apparently determined to launch proceedings against several unions alleging secondary boycotts . In recent years, the ACCC has had no stomach for this, presumably, I thought, because of evidentiary issues. Many regard the ACCC as a hopeless regulator, citing its less than satisfactory management of petrol discounting, in which the large petrol companies have been permitted for decades now to cynically exploit the public by contrived pricing, surely the very anti-competitive conduct the legislation is intended to outlaw. I am particularly curious at the timing of this apparent change of resolve in relation to secondary boycotts. Presumably the regulator is comforted by the change of Federal government, but should this have anything to do with its duty to prosecute its responsibilities without fear or favour?