If that happens, he would be compelled to sit in a room with prosecutors and answer questions under penalty of perjury.

如果发生这种情况，他将被迫与检察官坐在一个房间里，在伪证的惩罚下回答问题。

But will you please warn Mr. Perkins about the penalties of perjury.

但请你警告珀金斯先生作伪证的后果。