California, United States of America
The following excerpt is from People v. Gamez, 235 Cal.App.3d 957, 286 Cal.Rptr. 894 (Cal. App. 1991):
Much of the officers' "expert" testimony was rank regurgitation of hearsay coming from highly unreliable sources--rival gang members. The majority opinion glosses over this fact, but should not. However, any error was harmless. Sufficient information was from personal observations or reliable sources, 2 and it is not likely the verdict would have differed without the improper matter. (People v. Watson (1956) 46 Cal.2d 818, 836, 299 P.2d 243.)
The above passage should not be considered legal advice. Reliable answers to complex legal questions require comprehensive research memos. To learn more visit www.alexi.com.