governing [one's] conduct." Harlow v. Fitzgerald, 457 U.s. 800, 818-19, 102 S.Ct. 2727, 2738, 73 L.Ed.2d 396 (1982). On the other hand, "[i]f the law at that time was not clearly established, [the troopers] could not reasonably be expected to anticipate subsequent legal developments, nor could [t]he[y] fairly be said to `know' that the law forbade conduct not previously identified as unlawful." Id. at 818, 102 S.Ct. at 2738. This "qualified immunity [defense] accommodates competing social interests by ensuring that officials who `knowingly violate the law' are held accountable, while officials who reasonably exercise their discretion may do so without fear of being sued." Warner v. Graham, 845 F.2d 179, 182 (8th Cir.1988) (citing Arcoren v. Peters, 829 F.2d 671, 673 (8th Cir.1987) (en banc), cert. denied,
485 U.S. 987, 108 S.Ct. 1290, 99 L.Ed.2d 500 (1988)). If Get Away can show that the troopers' conduct violated clearly established law, "then the [troopers], as the movant[s] for summary judgment, must demonstrate that no material issues of fact remain as to whether the [troopers'] actions were objectively reasonable in light of the law and the information the [troopers] possessed at the time of [their] actions." Salmon v. Schwarz, 948 F.2d 1131, 1136 (10th Cir.1991) (citations omitted).
Get Away asserts that the troopers' actions in conducting the roadblocks and stationary patrols constituted a taking of property without just compensation in violation of its Fifth Amendment rights. Get Away has therefore met the first step in the qualified immunity analysis as required by Harlow and Siegert. Next, Get Away bears the burden of proving that the law pertaining to the Takings Clause of the Fifth Amendment was "clearly established" in 1989 when the troopers conducted the roadblock and stationary patrols. In other words, the law in 1989 must have been sufficiently clear that the troopers would have reasonably known that their actions violated Get Away's "basic, unquestioned constitutional rights." See Warner v. Graham, 845 F.2d 179, 182 (8th Cir.1988); see also Anderson v. Creighton, 483 U.S. 635, 640, 107 5.Ct. 3034, 3039, 97 L.Ed.2d 523 (1986).
"The question of what constitutes a `taking' for purposes of the Fifth Amendment has proved to be a problem of considerable difficulty." Penn Cent. Transp. Co. v. New York City, 438 U.s. 104, 123, 98 S.Ct. 2646, 2659, 57 L.Ed.2d 631 (1978). "There is no `set formula' for determining when `justice and fairness' require [that] governmental action be deemed a `taking of property' under the [F]ifth {A]mendment." In Re Prince, 867 F.2d 478, 485 (8th Cir.1989) (citing Ruckeishaus v. Monsanto Co., 467 U.s. 986, 1005, 104 S.Ct. 2862, 2874, 81 L.Ed.2d 815 (1984)). Indeed, the analysis depends largely "`upon the particular circumstances [in that] case.'" Penn Cent., 438 U.S. at 124, 98 S.Ct. at 2659 (quotation omitted). We must "`examine[] the `taking' question by engaging in essentially ad hoc, factual inquiries that have identified several factors-such as the economic impact of the regulation, its interference with reasonable investment-backed expectations, and the character of the governmental action-that have particular significance.'" MacDonald, Sommer & Frates v. Yolo County, 477 U.s. 340, 349, 106 S.Ct. 2561, 2566, 91 L.Ed.2d 285 (1985) (quotations omitted).
Get Away contends that the law in 1989 clearly established that the troopers' actions in question constituted a taking under the Fifth Amendment. We disagree. First, Get Away fails to cite any authority holding that the establishment of a state police roadblock which momentarily detains motorists constitutes a taking of a non-detained person's property under the Fifth Amendment. We were equally unable to discover any authority supporting this novel argument.
Second, with regard to the economic impact of the roadblock, Get Away baldly asserts that the troopers' conduct has caused "great revenue losses" and that the troopers have "targeted" its establishment with the "specific purpose of chilling its business." 5uch assertions are conclusory and fail to meet the rule's mandate to come forward with "specific facts showing there