They were issued with official records such as national insurance numbers and driving licences to make their personas more credible, in case the campaigners in the groups they were spying on became suspicious and began to investigate them.
But the more the Liberals flounder, the more credible the Abbott case seems.
But it's more credible than the case the administration has been making, which has been much more expansive in its justifications for war, and therefore much less credible in its promise of a strictly limited involvement.
Making the delusion seem even more credible is that most cases occur in women of childbearing age who are married, many of whom had been trying to conceive for years.
During those few days he will have to try to make a credible case that more votes were actually cast for him than for Mr. Bush in Florida.
Contrary to what you naysayers may think, this isn't just an example of using complex-sounding terms to come across as more credible than is actually the case to people who recognise the jargon but don't really have the requisite understanding to realise that it's utter utter nonsense.
Tomasi said that since 2004, more than 3,400 credible cases of abuse had been referred to the Vatican, including 401 cases in 2013 alone.
The groups claim to have documented more than 330 credible cases of torture, killings and abuse of some 460 detainees in Iraq, Afghanistan and Guantánamo Bay.
After years of complaints, in 2002 a special prosecutor began an investigation and found more than fifty credible cases of torture.
