You just gotta love the genius...Follow

Requirements for establishing probable cause through reliance on information received from an informant has divided the Court in several cases. Although involving a warrantless arrest, Draper v. United States 103 may be said to have begun the line of cases.

A previously reliable, named informant reported to an officer that the defendant would arrive with narcotics on a particular train, and described the clothes he would be wearing and the bag he would be carrying; the informant, however, gave no basis for his information. FBI agents met the train, observed that the defendant fully answered the description, and arrested him. The Court held that the corroboration of part of the informer's tip established probable cause to support the arrest.

A case involving a search warrant, Jones v. United States, 104 apparently utilized a test of considering the affidavit as a whole to see whether the tip plus the corroborating information provided a substantial basis for finding probable cause, but the affidavit also set forth the reliability of the informer and sufficient detail to indicate that the tip was based on the informant's personal observation. Aguilar v. Texas 105 held insufficient an affidavit which merely asserted that the police had ''reliable information from a credible person'' that narcotics were in a certain place, and held that when the affiant relies on an informant's tip he must present two types of evidence to the magistrate. First, the affidavit must indicate the informant's basis of knowledge--the circumstances from which the informant concluded that evidence was present or that crimes had been committed--and, second, the affiant must present information which would permit the magistrate to decide whether or not the informant was trustworthy. Then, in Spinelli v. United States, 106 the Court applied Aguilar in a situation in which the affidavit contained both an informant's tip and police information of a corroborating nature.

the Court in United States v. Harris 107 approved a warrant issued largely on an informer's tip that over a two-year period he had purchased illegal whiskey from the defendant at the defendant's residence, most re cently within two weeks of the tip. The affidavit contained rather detailed information about the concealment of the whiskey, and asserted that the informer was a ''prudent person,'' that defendant had a reputation as a bootlegger, that other persons had supplied similar information about him, and that he had been found in control of illegal whiskey within the previous four years. The Court determined that the detailed nature of the tip, the personal observation thus revealed, and the fact that the informer had admitted to criminal behavior by his purchase of whiskey were sufficient to enable the magistrate to find him reliable, and that the supporting evidence, including defendant's reputation, could supplement this determination.

You could call the cops, and they could get a warrant, or go knock on the door and ask to come in, that'd be a diffrent story.

The defense in court, of course, is: "My client had no knowledge of this substance before the premises were entered by the owners (likely illegally)." Move to dismiss, have a nice day.

If you want to arrest him with your private police force, and put him in your private prison because in your private court you find the evidence admissable as the private judge

haha, you just won't admit when you're wrong.

Again, I showed that evidence resulting from an illegal, but private citizen search can be admissible. It doesn't poison it.

I never said a warrant wasn't necessary.

I simply said police can use PJ's search & testimony as probable cause to obtain a warrant. Simple as that.