The phrase "a closed trial" is correct and usable in written English.
It is typically used in legal contexts to refer to a trial that is not open to the public, often for reasons of confidentiality or sensitivity of the information involved.
Example: "The judge decided to hold a closed trial to protect the identities of the witnesses involved in the case."
Alternatives: "private trial" or "sealed trial".
Bauer and Fattal were convicted of espionage charges in a closed trial last month.
Convicted of treason and espionage at a closed trial, Vanunu was jailed for 18 years.
Three others were acquitted when the verdicts came down on July 1 after a closed trial.
After a closed trial in Shiraz, they were initially sentenced in July to 4 to 13 years.
A closed trial is soon held in Pyongyang, where the unlikely American in question is given a lengthy prison sentence.
After two days of hearings in a closed trial at Moscow district military court, the judge has ordered a 10-day adjournment.
Convicted of stealing trade secrets and bribery, Mr. Hu was sentenced to 10 years in prison after a largely closed trial.
Ti-Anna, 29, barely knows her father, because in 2002 he was abducted by Chinese security agents while on a visit to Vietnam, bundled across the border, thrown into jail and, eventually, sentenced to life in prison after a one-day closed trial.
But his closed trial caused a sensation, and many in China's internet community defended Mr Yang and celebrated him as a hero who had rebelled against police corruption.The most personal exhibit in the show is "81", a replica of the cell in which Mr Ai was kept after his arrest in 2011.
In a closed jury trial that began April 29, Mr. Fofana was found guilty of the 2006 kidnapping, torture and murder of the man, Ilan Halimi, who was 23.
The pair, who completed their compulsory military service 18 months ago, were convicted last month after a closed military trial that became a cause celebre among soldiers who claim they are being victimised following international criticism over Israel's actions during the war.
