I've always wondered growing up if I could go on a crime spree and then blame my twin brother Weldon. Apparently, the answer until recently was yes. Now a test has been invented that prosecutors tried to use in a court case but the judge threw it out.
Looks like it's only a matter of time however until it is accepted.
https://www.nytimes.com/2019/03/01/science/twins-dna-crime-paternity.htmljr