A. It put in its files in 1982, apparently without further checking.

One investigator said that almost all of the recent complaints were unsubstantiated thus far but worthy of further checking.

But even if that were likely, Cutter considered, it was not certain, and some further checking was in order.

He had sent the list of customers Jules had provided to his boss C for further checking.

Items that do not match can be flagged for further checking.

This leaves only two (Nos. 1 and 2) where, without further checking, evidence might be considered too slight.

By then it would be too late to do any further checking on the background of 112 Ocean Avenue.

"But on further checking, either they didn't have him - most probable - or that he convinced them he was someone else."

Mr. Navallo found nothing amiss on his first visit to the Lopez home, but he left the case open for further checking.

"When you find consistently very, very high numbers, then that is cause for further checking," said the official, who spoke on the condition of anonymity.