The pedant in me simply had to post this story introduction from an online news service:

Three Filipino workers are getting legal advice after they were allegedy sacked by a Queensland welding company for joining a union.

When I read the story I discovered that the workers weren't allegedly sacked, they were sacked. What is alleged is the reason for them being sacked, so the sentence really should read something like this:

Three Filipino workers are getting legal advice after they were sacked by a Queensland welding company allegedly because they joined a union.