Comment by istjohn

Perhaps a way to avoid this would be to have the duress pin trigger not a device wipe, but a device encryption with a long, pre-set key that you would store in a safe place when setting up the duress pin. Then you haven't destroyed the evidence, but the data is irretrievable without your cooperation. Also, if you don't actually have the key saved, it would in fact be destroyed, but the prosecutor would have to prove that you don't have the key saved somewhere.