The phrase "a former prosecution" is correct and usable in written English.
It can be used in legal contexts to refer to a previous legal case or trial against an individual.
Example: "The defendant's history includes a former prosecution for theft, which may influence the court's decision."
Alternatives: "a previous prosecution" or "an earlier prosecution".
"If civilians are being told that they should leave or risk being deliberately targeted by military forces, that amounts to forcible transfer," Alex Whiting, a former prosecutions coördinator at the I.C.C., who now teaches at Harvard Law School, told me.
A former Crown Prosecution Service finance manager and her partner have been jailed for making bogus expenses claims worth more than £1m.
(d) The former prosecution was improperly terminated.
MOSCOW — Mikhail B. Khodorkovsky, a former billionaire whose prosecution by the Russian government has come to symbolize the country's legal failings, lost an appeal on Tuesday to overturn a second conviction.
However, a Crown barrister said on Friday that "regrettably" the original trial date would have to be vacated "as a consequence of ongoing proceedings" in another case of a former soldier facing prosecution in the same court.
He is a former chief of prosecutions for the tribunal, not the chief prosecutor.
A8 Columnist Avoids Prosecution A former columnist for The Miami Herald will not be prosecuted for taping a phone conversation with a former politician without his knowledge shortly before the man killed himself, the district attorney said.
For five and a half months, the former spokesperson for the MDW did not disclose to the anemic press that he was a former member of the prosecution.
Florence Hartmann, a former spokeswoman for the prosecution at the United Nations war crimes tribunal, has been summoned to answer charges of contempt of court for disclosing confidential information in a book after she left the court.
