DATE=7/30/97 TYPE=CORRESPONDENT REPORT NUMBER=2-217874 TITLE=BULGARIA / SECRET FILES (S ONLY) BYLINE=ART CHIMES DATELINE=PRAGUE CONTENT= VOICED AT: INTRO: BULGARIA HAS MOVED ONE MORE STEP AWAY FROM ITS COMMUNIST PAST AS THE PARLIAMENT PASSED A LAW OPENING UP OLD SECRET POLICE FILES OF TOP OFFICIALS. V-O-A CORRESPONDENT ART CHIMES REPORTS FROM OUR CENTRAL EUROPE BUREAU IN PRAGUE. TEXT: THE RULING UNION OF DEMOCRATIC FORCES HAD MADE OPENING THE FILES A KEY PROMISE IN ITS ELECTION CAMPAIGN THREE MONTHS AGO. THE REFORMIST GOVERNMENT SAYS MAKING THE FILES PUBLIC WILL PREVENT ATTEMPTS TO BLACKMAIL OFFICIALS ABOUT THEIR POSSIBLE PAST COLLABORATION WITH SECURITY FORCES. BUT OPPOSITION POLITICIANS SAY THE MEASURE IS UNCONSTITUTIONAL AND WILL UNDERMINE NATIONAL SECURITY. DEPUTIES FROM THE SOCIALIST PARTY OF FORMER COMMUNISTS WALKED OUT OF PARLIAMENT TO PROTEST THE BILL. THE NEW LAW WILL ALLOW PUBLIC ACCESS TO FILES OF SENIOR OFFICIALS INCLUDING MEMBERS OF PARLIAMENT AND GOVERNMENT MINISTERS. ELSEWHERE IN FORMERLY COMMUNIST EUROPE, DISCLOSURE OF SECRET POLICE FILES HAVE EMBARRASSED MANY WHO COLLABORATED WITH SECURITY AUTHORITIES. (SIGNED) NEB/ART/JWH/KL 30-Jul-97 12:15 PM EDT (1615 UTC) NNNN Source: Voice of America .