Citing numerous cases, the Tennessee Supreme Court holds that officers passing “no trespassing” signs has no talismanic authority to make a knock-and-talk unreasonable. The overwhelming weight of authority so holds. Police came to defendant’s front door, knocked, and he opened it and came out and locked the door. The officers could smell a meth lab inside. They asked for consent, and it was refused, so they entered anyway, finding a working lab and other inactive production stuff. The warrantless entry into the house was reasonable. State v. Christensen, 2017 Tenn. LEXIS 195 (April 7, 2017), aff’g 2015 Tenn. Crim. App. LEXIS 357 (May 14, 2015) (see Treatise § 16.05 n.3):
The question before us in this case is whether posting “No Trespassing” signs near an unobstructed driveway is an express order sufficient to revoke or limit the invitation/license such that a police officer may not legitimately approach the residence via the driveway in order to conduct a warrantless knock-and-talk encounter. That is, did the Defendant’s signs turn the investigators’ entry onto his property into an intrusion subject to constitutional protections? It is the Defendant’s burden of establishing, by a preponderance of the evidence, that the investigators’ knock-and-talk was invalid. See Holmes, 143 F. Supp. 3d at 1261. [On this score, I disagree. Anything warrantless has the burden on the prosecution, not the defense. That alone is reason to seek review with SCOTUS.]
. . .
We agree with the overwhelming majority of jurisdictions that have addressed the issue that signs admonishing “No Trespassing,” in and of themselves, are rarely going to be sufficient to revoke the implied license allowing persons to approach a front door and knock. The term “No Trespassing” is not so clear and unambiguous as the Defendant and the dissent claim. See Carloss, 818 F.3d at 995 (stating that no trespassing signs “by themselves, do not have the talismanic quality [the defendant] attributes to them”). Black’s Law Dictionary defines the term “trespass” as “[a]n unlawful act committed against the person or property of another; especially, wrongful entry on another’s real property.” Black’s Law Dictionary 1503 (10th ed. 2014) (emphases added). This definition implies clearly that some entries onto another’s real property are neither unlawful nor wrongful and, therefore, are not trespasses. Indeed, this Court recognized over one hundred and fifty years ago that, “[i]n law every entry upon the soil of another, in the absence of a lawful authority, without the owner’s license, is a trespass.” Norvell v. Gray’s Lessee, 31 Tenn. 96, 103 (1851) (emphasis added); see also, e.g., City of Townsend v. Danico, No. E2013-01778-COA-R3-CV, 2014 Tenn. App. LEXIS 302, 2014 WL 2194453, at *3 (Tenn. Ct. App. 2014) (recognizing that “[t]he courts of this state have … defined the tort of trespass as an unauthorized entry upon the land of another”) (citing Norvell, 31 Tenn. at 103); Holmes, 143 F. Supp. 3d at 1265 (stating that “the plain meaning of ‘No Trespassing’ is that it prohibits what people ordinarily think of as trespassing, and does not alter the character of an entry that one would not otherwise think to be a trespass, such as the implied license to approach the homeowner’s door to knock and talk”) (citing Oliver, 466 U.S. at 183 n.15).
In short, a homeowner who posts a “No Trespassing” sign is simply making explicit what the law already recognizes: that persons entering onto another person’s land must have a legitimate reason for doing so or risk being held civilly, or perhaps even criminally, liable for trespass. Consequently, as set forth above, a knock-and-talk conducted within constitutional parameters is a legitimate reason for police officers to enter the curtilage of a house via a driveway that is obstructed by nothing more than several “No Trespassing” signs. For this reason, we disagree with the dissent that “a ‘No Trespassing’ sign should be of particular significance to law enforcement officers in communicating that they may need to obtain a warrant before entering the property.”10 Officers engaging in legitimate police business will conclude, correctly, that they are not engaging in a “trespass” when they approach a front door to conduct a knock-and-talk. We also emphasize that the occupant of a residence is under no obligation to open a door when knocked upon by a police officer who holds no warrant.
The Defendant asserts that his signs were accompanied by other barriers to entry, including overgrown vegetation, the lack of a pathway to his house, and debris blocking any possible route from the driveway to the front porch, and that the totality of these circumstances made clear that no one was to enter his property absent an express invitation. We are not persuaded. First, the impact of signs at the beginning of a long driveway is not altered by the eventual accessibility of the front porch sixty or seventy yards later. Second, while a fence and a closed gate that physically block access to the front door of a house, in some instances, may be sufficient to revoke the implied license to enter the curtilage of a residence, mere ambiguous signage and unkemptness are not.
We agree with the lead opinion below that the Defendant’s signs “would not have prevented the casual visitor or the reasonably respectful citizen from approaching [the Defendant’s] residence.” Christensen, 2015 Tenn. Crim. App. LEXIS 357, 2015 WL 2330185, at *8. Accordingly, we hold that, under the totality of the circumstances, the Defendant’s “No Trespassing” signs posted near his unobstructed driveway were not sufficient to revoke the implied license referred to in Jardines. The Defendant is not entitled to relief on this basis.
"If it was easy, everybody would be doing it. It isn't, and they don't." —Me
"Life is not a matter of holding good cards, but of playing a poor hand well." –Josh Billings (pseudonym of Henry Wheeler Shaw), Josh Billings on Ice, and Other Things (1868) (erroneously attributed to Robert Louis Stevenson, among others)
“I am still learning.” —Domenico Giuntalodi (but misattributed to Michelangelo Buonarroti (common phrase throughout 1500's)).
"Love work; hate mastery over others; and avoid intimacy with the government."
—Shemaya, in the Thalmud
"It is a pleasant world we live in, sir, a very pleasant world. There are bad people in it, Mr. Richard, but if there were no bad people, there would be no good lawyers."
—Charles Dickens, “The Old Curiosity Shop ... With a Frontispiece. From a Painting by Geo. Cattermole, Etc.” 255 (1848)
"A system of law that not only makes certain conduct criminal, but also lays down rules for the conduct of the authorities, often becomes complex in its application to individual cases, and will from time to time produce imperfect results, especially if one's attention is confined to the particular case at bar. Some criminals do go free because of the necessity of keeping government and its servants in their place. That is one of the costs of having and enforcing a Bill of Rights. This country is built on the assumption that the cost is worth paying, and that in the long run we are all both freer and safer if the Constitution is strictly enforced."
—Williams
v. Nix, 700 F. 2d 1164, 1173 (8th Cir. 1983) (Richard Sheppard Arnold,
J.), rev'd Nix v. Williams, 467 US. 431 (1984).
"The criminal goes free, if he must, but it is the law that sets him free. Nothing can destroy a government more quickly than its failure to observe its own laws,
or worse, its disregard of the charter of its own existence." —Mapp
v. Ohio, 367 U.S. 643, 659 (1961).
"Any costs the exclusionary rule are costs imposed directly by the Fourth Amendment."
—Yale Kamisar, 86 Mich.L.Rev. 1, 36 n. 151 (1987).
"There have been powerful hydraulic pressures throughout our history that
bear heavily on the Court to water down constitutional guarantees and give the
police the upper hand. That hydraulic pressure has probably never been greater
than it is today."
— Terry
v. Ohio, 392 U.S. 1, 39 (1968) (Douglas, J., dissenting).
"The great end, for which men entered into society, was to secure their
property."
—Entick
v. Carrington, 19 How.St.Tr. 1029, 1066, 95 Eng. Rep. 807 (C.P. 1765)
"It is a fair summary of history to say that the safeguards of liberty have
frequently been forged in controversies involving not very nice people. And
so, while we are concerned here with a shabby defrauder, we must deal with his
case in the context of what are really the great themes expressed by the Fourth
Amendment."
—United
States v. Rabinowitz, 339 U.S. 56, 69 (1950) (Frankfurter, J., dissenting)
"The course of true law pertaining to searches and seizures, as enunciated
here, has not–to put it mildly–run smooth."
—Chapman
v. United States, 365 U.S. 610, 618 (1961) (Frankfurter, J., concurring).
"A search is a search, even if it happens to disclose nothing but the
bottom of a turntable."
—Arizona
v. Hicks, 480 U.S. 321, 325 (1987)
"For the Fourth Amendment protects people, not places. What a person knowingly
exposes to the public, even in his own home or office, is not a subject of Fourth
Amendment protection. ... But what he seeks to preserve as private, even in
an area accessible to the public, may be constitutionally protected."
—Katz
v. United States, 389 U.S. 347, 351 (1967)
“Experience should teach us to be most on guard to
protect liberty when the Government’s purposes are beneficent. Men born
to freedom are naturally alert to repel invasion of their liberty by evil-minded
rulers. The greatest dangers to liberty lurk in insidious encroachment by men
of zeal, well-meaning but without understanding.”
—United
States v. Olmstead, 277 U.S. 438, 479 (1925) (Brandeis, J., dissenting)
“Liberty—the freedom from unwarranted intrusion by government—is as easily lost through insistent nibbles by government officials who seek to do their jobs too well as by those whose purpose it is to oppress; the piranha can be as deadly as the shark.”
"You can't always get what you want / But if you try sometimes / You just might find / You get what you need." —Mick Jagger & Keith Richards, Let it Bleed (album, 1969)
"In Germany, they first came for the communists,
and I didn't speak up because I wasn't a communist. Then they came for the Jews,
and I didn't speak up because I wasn't a Jew. Then they came for the trade unionists,
and I didn't speak up because I wasn't a trade unionist. Then they came for
the Catholics and I didn't speak up because I wasn't a Catholic. Then they came
for me–and by that time there was nobody left to speak up."
—Martin Niemöller (1945) [he served seven years in a concentration
camp]
“Children grow up thinking the adult world is ordered, rational, fit for purpose. It’s crap. Becoming a man is realising that it’s all rotten. Realising how to celebrate that rottenness, that’s freedom.” – John le Carré, The Night Manager (1993), line by Richard Roper
"The point of the Fourth Amendment, which often is not grasped by zealous officers, is not that it denies law enforcement the support of the usual inferences which reasonable men draw from evidence. Its protection consists in requiring that those inferences be drawn by a neutral and detached magistrate instead of being judged by the officer engaged in the often competitive enterprise of ferreting out crime." —Johnson v. United States, 333 U.S. 10, 13-14 (1948)
The book was dedicated in the first (1982) and sixth (2025) editions to Justin William Hall (1975-2025). He was three when this project started in 1978.