Few things are more emblematic of the wild west era that a wanted poster. Today such a thing is unheard of. I know today there are rewards for information leading to capture of fugitives and bail bondsmen take bail jumpers. I'm sure a straight up dead or alive bounty today would be political suicide (or maybe not), but I am interested in what happened to their legal status. I can image there may be due process issues for dead, but captured alive doesn't seem inherently prohibited.
What is the legal status of the formerly common "dead or alive bounties"? Are they still on the books? were they repealed?, ruled unconstitutional?, limited?, etc....?