delator

Example:The delator provided an informant to the police about the planned robbery.

Definition:A person who provides information, often to authorities, that leads to the discovery or prevention of a crime

Example:The delator was actually a whistleblower who revealed the corrupt practices in the company.

Definition:A person who exposes secret information or incorporates insider knowledge illegally or otherwise to the public. Often involves legal reports about criminal activities or unethical behavior.

Example:The delator turned out to be the defendant in the fraud case he had reported.

Definition:A person who is accused of a crime or wrongdoing and is required to appear in court and respond to the charges against them.