This is also the first case that starts to articulate a doctrine of forbidding active concealment.

This offense, however, requires active concealment of a known felony rather than merely failing to report it.

There is evidence of active concealment of documents.

"Short of being able to prove active concealment by the seller, the buyer's not going to have a lot of luck in court," he said.

The disgraceful length of the proceedings can, in part, be blamed on the two men's "persistent and active concealment" of the money trail under investigation.

Regressive rock fears accomplishment, privileges INCOMPETENCE, or at least demands the active concealment of skill.

He added, "There are many different kinds of tax problems, which vary in nature from filing late or having a legitimate dispute with the I.R.S., on the one hand, to active concealment."

Furthermore, Ms. Taylor said, the government's complaint against the advisers said they worked to conceal their private investing, adding: "If there's active concealment, it seems to us unreasonable to expect that we could have caught this.

Further, it must be recognized that obtaining forfeiture of the proceeds of crime can be an especially difficult task for police and Crown prosecutors in situations of sophisticated criminality and active concealment of the criminally derived nature of assets.

"Unfortunately, Judge Freeh's conclusion … that Dr. Spanier was engaged in a course of 'active concealment' is simply not supported by the facts or by the report itself," said a statement Spanier issued Thursday through his attorneys, Peter Vaira and Elizabeth Ainslieon Thursday.