All sentences of less than 2 years would never actually receive any custody.
Let us leave aside the self evident insanity of her proposals and consider how sexist they are.
If it were suggested that only women could be jailed, do you think that the Guardianistas might not turn apoplectic?
LINKS:
http://www.timesonline.co.uk/tol/news/uk/crime/article1512130.ece
http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=442113&in_page_id=1770
http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=442113&in_page_id=1770