system
Given the following post, respond as if you're commenting on Reddit:
human
[Ace Attorney series] So does the crime of perjury not exist in this universe?

One of the central features of the series is finding contradictions in witness testimony and pointing them out to show that their testimony is false. 

Sooo, what happens to these witnesses who willfully lied? Are they charged with obstruction of justice or allowed to move on with their lives?
gpt
According to Wikipedia:

>Despite a tendency of American perjury law toward broad prosecutory power under perjury statutes, American perjury law has afforded potential defendants a new form of defense not found in the British Common Law. This defense requires that an individual admit to making a perjurious statement during that same proceeding and recanting the statement. Though this defensive loophole slightly narrows the types of cases which may be prosecuted for perjury, the effect of this statutory defense is to promote a truthful retelling of facts by witnesses, thus helping to ensure the reliability of American court proceedings just as broadened perjury statutes aimed to do.

Since they always cop to their lies in the end and the setting is ostensibly America, it seems like they get to go unpunished.