Improbable History

I recall reading here many months ago, perhaps more than a year ago, a post by someone who analysed the claim by pro-Family supporters that not one single conviction arose from all of the raids on Family homes that occurred in the late 80s early 90s.

If I remember correctly, that analysis concluded that it was because of legal technicalities and not innocence that there were no convictions. Is my memory serving or failing me? Anybody else remember this?