An interesting story out of Seattle where police used DNA to connect a suspect to an unsolved 1976 murder.
The man was a suspect in the original murder case but they could not prove it. A police officer used a “chewing gum survey” to trick the man into giving up a DNA sample.
While I am glad they seem to have caught a killer, this does seem to raise 4th amendment issues. While there is case law saying that DNA taken in public places is not subject to the 4th amendment limits, I am not sure that this case fits the general rule.