Wisconsin Gov. Walker Signs 'John Doe' Investigation-Ending Bill

MADISON, Wis. (AP) -- Gov. Scott Walker has signed into law a bill that does away with secret John Doe investigations into political misconduct.

Walker signed the bill Friday.

Walker has been involved in two John Doe investigations, neither of which resulted in him being charged. The most recent probe involved Walker's recall campaign and conservative groups. The state Supreme Court ended the investigation in July, saying there was nothing unconstitutional about the campaign coordination.

The Republican-controlled Legislature passed the bill doing away with John Does for any kind of political misconduct, including bribes, theft and campaign finance violations. They could still be used for violent felonies and some drug crimes.

John Does are like a grand jury, but are done before a judge. Witnesses are under gag orders, and prosecutors can compel people to testify.