A government financial documents specialist branded as "fabricated" today a series of business records allegedly used by Maryland state Sen. Tommie Broadwater and his daughter Jacqueline to conceal up to $70,000 in illicitly obtained food stamps at Broadwater's suburban Washington supermarket.

"I was convinced that these loose sheets of daily sales totals were fabricated," said Eugene Twardowicz, longtime investigator and financial records specialist for the U.S. Attorney's Office here, as he held up samples of the hand-written ledger sheets to a federal court jury trying the Broadwaters and three other persons on food stamp fraud charges.

At another point, Twardowicz testified that several supermarket employes "basically said it was Jackie's writing" on the sheets.

During the unusual Saturday court session before U.S. District Court Judge Norman P. Ramsey, Twardowicz produced an elaborate set of charts purporting to show how Broadwater laundered batches of the stamps he had received at 60 percent of their face value from three accused food stamp traffickers, who in turn allegedly bought them at 40 percent of value from an undercover Secret Service agent posing as a food stamp thief.

Twardowicz said Broadwater processed most of the stamps through his Chapel Oaks Farmers Market in Prince George's County between January and March this year and then converted them to cash through a special account of the Ebony Inn restaurant, of which he is part owner.

Federal agents have testified that they recorded the serial numbers of the stamps and traced them to Broadwater after the stamps eventually came to the Federal Reserve Bank in Baltimore with Chapel Oaks Farmers Market and Ebony Inn endorsements on them.

Charged in the alleged conspiracy with Broadwater and his daughter are Raymond (Big Jack) Quigley, 68, of Fairfax; his son, Raymond Jr., 49, of Clinton, and William Dudley, 49, of Landover.

The Quigleys are charged with arranging to buy the food stamps from undercover Secret Service agent Norman James at a defunct funeral home in Northwest Washington. Dudley, a longtime acquaintance of Broadwater's, is charged with buying a large bulk of the stamps and delivering them to Broadwater in Prince George's County.

Broadwater, 41, a feisty entrepreneur and Democratic political stalwart in Prince George's County, has maintained his innocence since his arrest last March. Through his attorney, R. Kenneth Mundy, he acknowledes he had "contact" with Dudley but denies any criminal intent. Broadwater is expected to testify this week.

Jacqueline Broadwater, 21, has contended she carried out largely clerical duties at the store and was not part of a conspiracy. Dudley and Quigley Jr. claim they were illegally entrapped by federal agents. Quigley Sr. says he never bought any food stamps from the undercover agent.

Prosecutor James P. Ulwick told the jury of eight women and four men in his opening statement last week that Broadwater, in effect, kept two sets of books at his market, one reflecting legitimate daily income of cash and food stamps from market customers, the other--the "loose sheets" that Twardowicz testified to--allegedly reflecting the illicitly obtained food stamps.

Today, Twardowicz said he examined various cashier sheets, adding machine tapes and cash register tapes seized by law enforcement officers in March and became suspicious when he saw "discrepancies" between cash amounts and food stamp amounts rung up on individual cash registers, such as "three dollars in cash and two thousand dollars in food stamps."

Also, he said one set of "daily checkout sheets" maintained by the cashiers corresponded closely to the actual number of food stamps collected from customers, while a separate set of "loose sheets" found in the market's office corresponded closely to the number of food stamps undercover agent James had sold through the Quigleys and Dudley.

For example, according to Twardowicz' chart, James sold $10,000 in stamps through the Quigleys and Dudley on Jan. 20, 1983, for $4,000. Within the next 10 days, according to the chart, $9,511 of those stamps were endorsed at the Chapel Oaks Farmers Market and Ebony Inn for redemption and then deposited in a special Ebony Inn tax account for Broadwater marked for "Rocky Only." Rocky is a Broadwater nickname. Thereafter, Broadwater allegedly cashed several checks from that account, totalling $3,617 between Jan. 20 and 24, for example, with more cashed later, according to the chart.