James Howells, an IT worker living in the United Kingdom, knows exactly where his misplaced 7,500 bitcoins are but the city council where he lives won't let him retrieve them. They say it's against the law.

According to a report published in The Telegraph, Howells began mining bitcoin on his personal laptop in 2009. In 2013, though, "after I had stopped mining, the laptop I had used was broken into parts and sold on eBay," Howells tells The Telegraph.

He kept the drive he used to collect the bitcoins, "so if bitcoin did become valuable one day, I would still have the coins I mined."

But, while cleaning his home in 2013, he mistakenly put it into a waste bin at his local landfill site in Newport, South Wales, where it got buried

https://www.cnbc.com/2017/12/20/man-lost-127-million-worth-of-bitcoins-and-city-wont-let-him-look.html