Fake coins

Apparently 3% of  pound coins in circulation are fakes i.e. forgeries. Next year (2017) a new 12-sided 1 pound coin is to be introduced to all but eliminate fakes. Not sure if the 2 pound coin is being replaced too?

See http://www.bbc.co.uk/news/uk-politics-2663286 .

http://news.bbcimg.co.uk/media/images/73667000/jpg/_73667988_73667987.jpg