424 U.S. 409 (1976) Cited 10,907 times 5 Legal Analyses
Holding prosecutors absolutely immune from damages liability for having knowingly presented perjured witness testimony against criminal defendants, observing that the "veracity of witnesses in criminal cases frequently is subject to doubt before and after they testify . . . . If prosecutors were hampered in exercising their judgment as to the use of such witnesses by concern about resulting personal liability, [they often would refrain from calling such witnesses and hence] the triers of fact in criminal cases often would be denied relevant evidence"