Evan Brown reports: "Although not everyone is convinced that Wikipedia can be trusted to always tell the truth, it is interesting to note that in the past year or so several courts, including more than one federal circuit court, have cited to it to fill in background facts relevant to cases before them."
P.S. If you want a better practice, check out this Ultimate Guide.
Actually, I would see the merit of citing Wikipedia on a range of issues that roughly corresponds to those which are a proper subject of judicial notice: ordinary facts that are not particularly controversial or in dispute.
No kidding? Wikipedia is being quoted as source information in courts ? Is this by the prosecution or by the defense of by both?