This petition was submitted during the 2015-2017 parliament
Petition Make it a criminal offence for members of parliament to lie in parliament.
The powers have never been used and senior MPs are keen to consider whether prosecution might be a possibility in the future.
More details
Lying or misleading Parliament should become a criminal offence, say MPs as Government considers using powers last used 150 years ago
http://www.dailymail.co.uk/news/article-2176841/Lying-misleading-Parliament-criminal-offence.html
This petition is closed This petition ran for 6 months