Law officials expect the investigation to continue for several months.

"We should expect the investigation will continue across the board."

"The investigation will continue until we really get the full picture."

As the investigation continues, others may be added to the list of those who stay, he said.

But the investigation will continue until we have the answer, if it takes a hundred years.

He said the investigation would continue until the seven farmers were actually seen in person.

"The investigation will continue as we still have a few details to clean up."

Under the terms of Regulation 3281/94 the investigation must continue for at least one year.

People close to the exchange now say that the investigation will probably continue into the fall.

Federal officials have said their investigation began before the campaign and will continue after it ends.