It’s been more than two weeks since the Michigan Department of Agriculture (MDA) and the Michigan State Police completed their “sting” operation by confiscating raw milk and other products from the Family Farms Cooperative and conducting a home search for business records.

But what about the investigation that was promised at the time of the seizure and searches? It’s apparently moving along fairly briskly, by law enforcement standards. There is a “high likelihood” that county prosecutors in Michigan will make a decision on whether or not to file criminal charges in the case sometime next week, a prosecutor told me. According to Victor Fitz, the prosecuting attorney for Cass County, which has responsibility for the area where Richard Hebron, the co-op manager, has his farm, the county prosecutor’s office has “received a portion of the (investigative) report” about the case, with “the balance coming sometime later this week.”

His assessment is somewhat more optimistic than that of Katherine Fedder, director of the MDA’s food and dairy division, who told me last week she sees the investigation still requiring “a few weeks.”

Sometimes, though, prosecutors can push agencies like MDA to speed things up, especially in high-profile cases as this one has evolved into. (For background on this case, see my original BusinessWeek.com article, along with a followup article.)

Neither Fitz nor Fedder would speculate on what charges might come out of the investigation. Peter Kennedy, a lawyer for the Weston A. Price Foundation, who is providing legal assistance to the co-op, suspects that any charges could involve product labeling issues or the fact that the milk came from out of state, an Indiana dairy. Of course, the prosecutor could decide not to press charges at all.

While there is also a possibility the prosecutor for Washtenaw County, which includes Ann Arbor, the site of the planned distribution of the seized products Oct. 13, could file charges, but both Fedder and Kennedy indicated that the real action is so far occurring in Cass County.

And lurking in the background is the federal Food and Drug Administration (FDA) which has sent its investigators on two occasions to the Amish dairy in Indiana that produces the co-op’s raw milk. It refuses to provide any timetable on possible actions.