to testify as to value of property in issue). 9 . United States v. McCullah, 745 F.2d 350, 352 (6th Cir.1984) (permitting, in a prosecution for conspiracy to steal, transport, conceal, and resell a tractor, the testimony of a government agent describing the location of the tractor as "hidden" under some trees, since it was rationally based on the perception of the witness and helpful to a clear understanding of his testimony); United States v. Sweeney, 688 F.2d 1131, 1145-46 (7th Cir.1982) (concluding that a PCP and methamphetamine drug user could testify as to identity of said drugs based on his prior use and knowledge, his sampling of the substance, and the conclusion that the drug affected him in the same manner as it had before); State v. No Heart, 353 N.W.2d 43, 48 (S.D.1984) (<HOLDING>). 10 . See, e.g., State Office Sys., Inc. v.
holding that delay caused by or consented to by a defendant is not unreasonable holding that unintended damage to a pipeline caused by the defective coating supplied by insureds subsidiary was caused by an occurrence within the meaning of the liability policy holding that a police officers opinion that victims injuries were caused not by a fist but by something sharper was properly admitted given that distinction between a wound caused by a fist and a wound caused by a sharper object was within realm of an average persons experience holding death caused by unknown object provides sufficient notice holding that eco nomic injury caused by contractual obligations that stemmed from compliance with a regulation were sufficiently caused by the regulation to support standing