The phrase "allegation based" is correct and usable in written English.
It can be used to describe something that is founded on or derived from an allegation, often in legal or formal contexts.
Example: "The investigation was primarily allegation based, focusing on the claims made by the whistleblower."
Alternatives: "claim-based" or "assertion-based".
Student Conduct and Community Standards determines how to respond to the allegation based on whether the student has a related, prior disciplinary record.
The high court in London was told the allegation, based on forged documents given to a journalist by an Iraqi general, was "false and without foundation".
That, he explained, was why he had taken such a close interest in rebutting the BBC report which carried the allegation, based supposedly on an unnamed source that later turned out to be Mr Kelly.Even the prime minister's most bitter critics accept that his advocacy skills are exceptional.
No serious news-gathering organization would print or broadcast such an allegation based on this watery testimony; indeed, even if the information was triple checked and irrefutable, most responsible publications and television and radio news programs would at least ponder whether it was fair to report an emotional remark made 26 years earlier.
It's an allegation based on the far-right groups that supported the uprising that toppled President Viktor Yanukovych, as well as the nationalism of Western Ukraine during World War Two.
You will appreciate it is difficult to comment on allegations based on extracts from unseen emails.
As your editorial notes, teachers must be safe from capricious or vague allegations based on politics or personality.
The Supreme Court of California earlier had addressed and rejected allegations based on many of the same parts of Costello's testimony.
The allegations, based on documents leaked by National Security Agency whistle-blower Edward Snowden, included claims that Washington had bugged EU offices and even the mobile phone of Chancellor Merkel.
According to plaintiffs, the claims in the New York Action are primarily for securities fraud and insider trading and set forth demand futility allegations based on defendants' misrepresentations, omissions, and insider sales.
This attitude is easy to relate to; it may give judges and juries a ready, and highly personal reference point from which to sympathize with allegations based on a "head in the sand" boardroom culture.
