Page:Brief for the United States, Wong Sun v. United States, 371 U.S. 471 (1963).djvu/30

 this was indispensable, or that an agent cannot have other reasons for believing an informant. An adequate judgment of reliability depends on a number of circumstances. If relatives of an accused give information as in United States v. Naples, 192 F. Supp. 23 (D. D.C.), pending on appeal, C.A. D.C., No. 16436, officers have a right to take the information very seriously, even if they have never received information from such persons before. Very little corroborating information would be needed to justify an officer in reaching the conclusion that the information given was reliable. On the other hand, more corroboration may reasonably be deemed necessary if information came from an anonymous tip or from a source, theretofore unknown, as to which the officers had no