CWmike writes: "Google asked the International Trade Commission on Wednesday to block the testimony of a Microsoft expert witness in the latter's 10-month-old action against Motorola over patents allegedly used by Android. Google says Microsoft did not ask permission before showing Robert Stevenson the Android source code. 'The protective order governing confidentiality in this investigation explicitly requires that Microsoft disclose to Google any consultant or expert seeking access to Google confidential business information or highly confidential source code before [emphasis in original] allowing a consultant or expert to review such information so that Google has an opportunity to object prior to disclosure,' Google's complaint reads. 'The confidential source code improperly provided to Dr. Stevenson is highly proprietary source code that Google does not even share with its partners, such as Motorola,' Google said. Patent activist and analyst Florian Mueller said Thursday that Google's move was little more than delaying tactic. 'This is a secondary theater of war,' Mueller told Computerworld. 'It's about procedural tactics, maybe hoping that this could cause a delay, but whatever the outcome may be, it won't change anything about the substance of this case.'"