In Discovery, "the prosecutor is obligated to provide to the defendant any information that is exculpatory or potentially exculpatory".
I am looking for cases where the defendant, on the other hand, can withhold incriminating evidence.
In particular, suppose that the defendant is accused of committing a crime in a manner which is scientifically debatable. The defendant directly hires 10 independent scientists to re-enact the crime, of which 9 are successful.
Can the defendant then ignore those 9, bringing only the 1 scientist in line with his defense to trial? The jury thereby never knows that 9 re-enactments worked, and only knows that 1 re-enactment failed. Going beyond the defendant, does the defendant's lawyer, if aware of all 10, have a duty to disclose all 10 to the prosecutor?
The crime occurs in Los Angeles, California, USA.