WASHINGTON, June 19: The Supreme Court on Monday made it easier for prosecutors to use expert testimony about DNA laboratory reports at trial without allowing defendants to confront and question the forensic analysts involved in the tests. By a 5-4 vote, the high court refused to add to a string of decisions since 2004 that have broadly interpreted the constitutional rights of criminal defendants to confront witnesses against them. The case involved a sexual assault in 2000 in Chicago for which the defendant was convicted and sentenced to life in prison.