Edited sentence: 230099 typewriter introduced as evidence by the defense at the trial, the FBI knew that there was an inconsistency between its manufacture date and its serial number but illegally withheld this information from Hiss.Hired by the Hiss defense team, Schmahl reported on the Hiss defense strategy to government prosecutors.In 1976, as a result of Freedom of Information Act (FOIA) suits by Hiss and others, Department of Justice documents were released, which documented serious misconduct by the FBI and the prosecution.Information in the government's own documents showed:.That the FBI had an informer on the Hiss defense team, a private detective named Horace W.That the FBI had conducted illegal surveillance of Hiss before and during the trials, none of which provided any evidence that Hiss was a spy or a Communist.The FBI illegally withheld important evidence from the Hiss defense team, specifically that typewritten documents could be forged.With regard to the Woodstock No