Can a court allow unsupported opinion evidence from a police officer, who does not hold a higher science-engineering degree, about a novel cell phone location (pings) that is not validated as reliable, as expert witness testimony thus violating U.S. Supreme Court's right to due process and a fair trial?

QUESTION(S) PRESENTED Can anol court allow ursupported opinion ecdinon Yom a police oWicer, whe does not hold oa her seience-lendineerin Shavee \aloout novel cell prone, \ocodion (echelons drat is net Mrahated as veliolsle, 0s expert witvess testimony shus viol ading Us. Upsaws ridged to due Process and a daw krial? Le Mere & didRererk standard of proo® and tednniea reliabilihy for a exvwinal Wied Yen for « warrant appicct ion? Ta Arial Court's Noetual Fading Mot new teclclogy was used conservatively’ relevant to Yne Sack Mok Ane eich Sor certainty acceptable dec & warrant or to truncate possiltilities sor an area. Search is Not adequare jo conclude Wot tne same person possessed loolh phones in adivdy larag area, MhereSove ouside (re Seepe. of iwspecctor Vayke's expartise © De these ervors vidate Ns. Upahad's Sh and Pourleerdn amendments” Ts atrial court required do give on accomplice instruchon-to she. rq avout letters voritten loy aormer eodebendaut and miciled from the jail de another person with no expectation EN pracy? Ts Shere. a higher Standard of "ocginst iwevest" Sor someone on trial fo Riret decree murder Hhax JY someone Facing a. \easer homicide charge, because denna, oO special aArcumstance , denying premeditation, or otherwise chessing magn or ustWicction ‘wm order +o get Mne lesser homicide Vera may vAgd® pe wave declarent's inkerests., or even dhe obyetive,,” “Does adwn-Hing Mis worn under’ a. WearSa excection videde defardan's rid to amss-examne he declarank”? Can two acconplices corroborate. eadn other ia their Festwnony aaainst oO Mid dWerdout? Ts wore. corraboroction requied Xor She Awe crccesmplice witness statements? Ts o yy reauiced vo Oqree on MMe, grourdss Nor a wurder doy Xnorial ogin special arcumsrorce Sf De Yrey \owe Yo come to an unanimous yordick dou \now 0. Acbendor intended ko ok? Qrovld Mne. Arial ; Cord mncke Drew aware dt Bob dohapion wah OW special nalruchony On nonin?