rely on a warrant to search a house where the warrant affidavit stated that there was marijuana growing near the house and that there was a road from the house to the marijuana). Of course, the information in the affidavit does not eliminate the possibility that the marijuana came from somewhere else. The affidavit states that the trash was found at the end of a lane that dumped out into a rural highway. Admittedly, the trash could have been flung out the window of a passing car, or it could have fallen off the back of a garbage truck. However, when it comes to probable cause, the name says it all; certainty is never required, only a fair probability. When the issue is one of good-faith reliance, even less is necessary. See United States v. Bynum, 293 F.3d 192, 195 (4th Cir.2002) (<HOLDING>). The affidavit must simply bear some indicia
holding that magistrate must have substantial basis for concluding that probable cause exists holding that plaintiff was required to plead and prove the absence of probable cause to support his bivens claim holding that the existence of probable cause for an arrest is a complete defense to a first amendment retaliation claim under the doctrine of qualified immunity holding that the existence of probable cause in a  1983 case is a jury question holding that leon requires a less demanding showing than the substantial basis threshold required to prove the existence of probable cause in the first place