The phrase 'credible enough for' is a correct and usable form of English.
It is used to imply that something is believable or has enough evidence to be accepted as true. For example, "The witness's testimony was credible enough for the judge to make a ruling."
The threats were considered credible enough for him to go into exile for a while.
She has received death threats online, credible enough for refugee settlement workers to provide her with security.
But American officials said the intelligence was credible enough for them to focus new concern on the security of Pakistan's weapons program.
"Are the recent trials credible enough for Congress to lift the bans?" he asked, then answered his own question: not so far.
While reports suggested that some of the information provided by Mr. Shahzad was being met with skepticism by the federal authorities, the letter suggests that at least some of it was credible enough for them to take quick action.
"When are we going to stop exporting all of these designers because we don't have a platform that is deemed credible enough for them to participate in?" Mr. Cintamani said.
Cooper said Labour had failed to show that it had a "credible enough plan" for jobs and career opportunities and had not persuaded voters that it understood the big issues of the time, such as the rise of nationalism, uncertainty over Europe, and the threat posed by Islamic State.
Designed appropriately, such a package would be credible enough to allow for a temporary delay of the scheduled sequestration policies and extension of expiring tax cuts.
However, none of these correlations is credible enough to use for the final project design.
On three specific occasions in 1998-1999, intelligence was deemed credible enough to warrant planning for possible strikes to kill Bin Ladin.
He says investigators from counterterrorism and intelligence bureaus met with her on Wednesday and will do a "comprehensive threat assessment" to decide whether it's credible enough to require security for her.
