Mr Cooper's lawyer, Tony Morris, QC, accused former policeman Mr Speck of "abusing" the court case for publicity and timing a raid on Mr Cooper's home to take place a week before the ARIA awards last year, after a 10-month investigation.
"The Anton Pillar order and the raid on my client's home was a publicity stunt, wasn't it?" Mr Morris asked the witness.
"To raise the profile of your organisation and its role in fighting so-called internet piracy."
Mr Morris also accused Mr Speck of starting the litigation process so he could bring music piracy to the attention of the media.
"You're using it as a platform to go to the media and push the viewpoint of the people who pay your salary," he said.
Mr Speck denied the accusations but admitted he did not find any MP3 files on Mr Cooper's website when asked by Mr Morris.
"The site that we're talking about is the site with the URL mp3s4free.net," the lawyer said.
"There was no MP3 file at any time to your knowledge located within the site defined by that URL."
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