I think this is regarding the testimony mentioned in the above Huffpo article…
Do Bain SEC documents suggest Mitt Romney is a criminal? (document embedded at link)

Moreover, there is another document — the 2002 Massachusetts Ballot Law Commission report that certified that Romney could run for governor. The findings in this report were the result of weeks of testimony and investigation. We have embedded the report below.
…..
The report showed that Romney remained on the board of three companies, two of which had Bain connections — Staples and LifeLike Co. The report said he returned to Massachusetts “to attend meetings at Staples,” but does not mention that he attended any meetings at Bain, even as it provides a long list of social events that brought him back to Massachusetts. One would think that if Romney was trying to prove continued links to Massachusetts, he would have emphasized he kept doing work for Bain.

In other words, an official state investigation concluded that Romney no longer worked at Bain as of early 1999, and also was working “12 hours a day, six days a week” on the Olympics from 1999 to 2002.

What Huffpo didn’t tell us was the conclusion of the investigation, which is that Mitt left Bain in ‘99.