DATE=7/29/97 TYPE=CORRESPONDENT REPORT NUMBER=2-217832 TITLE=TERRORIST HEARING(L-O) BYLINE=BARBARA SCHOETZAU DATELINE=NEW YORK CONTENT= VOICED AT: INTRO: A COURT HEARING BEGAN IN NEW YORK TODAY (TUESDAY) TO DETERMINE WHETHER PROSECUTORS WILL BE ALLOWED TO PRESENT CERTAIN EVIDENCE TO THE JURY IN THE COMING TRIAL OF RAMSAY YOUSEF, THE ALLEGED MASTERMIND OF THE 1993 BOMBING OF NEW YORK'S WORLD TRADE CENTER. CORRESPONDENT BARBARA SCHOETZAU REPORTS. TEXT: THE HEARING STEMS FROM ALLEGATIONS MADE BY A SCIENTIST WHO WORKED FOR THE FEDERAL BUREAU OF INVESTIGATION, FREDERICK WHITEHURST. MR. WHITEHURST CHARGED THAT IN AN EARLIER TRIAL CONCERNING THE WORLD TRADE CENTER BOMBING, THE F-B-I LABORATORY WAS GUILTY OF MISMANAGEMENT, CONTAMINATION OF EVIDENCE AND PRO-PROSECUTION BIAS. THE CONTROVERSY CENTERS ON THE ISSUE OF WHETHER OR NOT A HIGHLY EXPLOSIVE AND RARE COMPOUND, UREA NITRATE, WAS USED IN MAKING THE BOMB THAT EXPLODED AT THE WORLD TRADE CENTER. MR. WHITEHURST HAS SAID THE FBI LABORATORY'S INITIAL REPORT THAT UREA NITRATE WAS PRESENT IN THE BOMB COULD NOT BE SCIENTIFICALLY PROVEN. DEFENSE LAWYERS ARGUE THAT THE LABORATORY'S WORK WAS UNRELIABLE AND, THEREFORE, INADMISSIBLE. THE PROSECUTION IS ATTEMPTING TO LINK RESIDUE OF UREA NITRATE TO THE DEFENDANTS. THE PROSECUTION'S FIRST WITNESS AT THE HEARING WAS ANOTHER F-B-I SCIENTIST, STEVEN BURMEISTER, A CHEMICAL EXPLOSIVES EXPERT WHO WORKED WITH MR. WHITHEURST AT THE LAB. MR. BURMEISTER TESTIFIED HE FOUND TRACES OF UREA NITRATE ON THE TIRE OF THE VAN THAT CONTAINED THE BOMB, ON THE CEILING OF AN APARTMENT THE DEFENDANTS RENTED, AND IN THE RESIDUE OF THE BOMB ITSELF. THE HEARING IS EXPECTED TO LAST THREE OR FOUR DAYS. THE PRESIDING JUDGE WILL THEN RULE ON WHETHER THE DISPUTED EVIDENCE CAN BE USED BY PROSECUTORS. THE TRIAL ITSELF OF RAMZI YOUSEF AND AN ALLEGED ACCOMPLICE, EYAD ISMOIL (AY-YAD IS' MOW EEL), IS EXPECTED TO BEGIN NEXT WEEK. (SIGNED) NEB/NY/BJS/LSF/LWM 29-Jul-97 4:29 PM EDT (2029 UTC) NNNN Source: Voice of America .