Lawyers representing whistleblowers and the federal government in potentially lucrative suits under the False Claims Act will be forced to scrutinize a whistleblower’s fraud allegations much more closely before going to court because of a recent U.S. Supreme Court decision.

That scrutiny is likely to lead, say False Claims Act experts, not only to fewer recoveries for whistleblowers but also to a changed relationship between whistleblowers and the government, frequent “partners” in pursuing fraud under the FCA.