retrograde extrapolation analysis (Texas) · Go Syfert
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retrograde extrapolation analysis in Texas

10 Texas opinions name it 2 courts 2006–2021 1 in the last five years

The cases below were cited by Texas courts in a sentence that names this issue. Sides come from how each citing opinion treated the case (Syfertize flag on that citation), so a case can appear on both: that is where the law is contested. A red or yellow chip is the case's own overall treatment.

Followed or applied (5)

CaseFollowedCited
Mata v. Stategreen
texcrimapp · 2001 · cited in 7 Texas opinions naming this issue, 2006–2008
2 sentences

2008Id. at 917 .

2008In Mata, the Court of Criminal Appeals concluded that “the science of retrograde extrapolation can be reliable in a given case,” but the expert must be able to “apply the science and explain it with clarity.” 46 S.W.3d at 916 .

57
Bigon v. Stategreen
texcrimapp · 2008 · cited in 2 Texas opinions naming this issue, 2008–2008
2 sentences

2008See id. at 915–16; see also Bigon , 252 S.W.3d at 368 .

2008See id. at 915-16 ; see also Bigon, 252 S.W.3d at 368 .

22
Williams v. Stategreen
texapp · 2017 · cited in 1 Texas opinions naming this issue, 2021–2021
1 sentence

2021See Williams v. State, 525 S.W.3d 316 , 322–23 (Tex. App.—Houston [14th Dist.] 2017, pet. ref’d) (sufficient evidence of intoxication despite challenges to the blood testing).

11
Runnels v. Stategreen
texapp · 2006 · cited in 1 Texas opinions naming this issue, 2016–2016
1 sentence

2016Runnels v. State, 193 S.W.3d 105, 107 (Tex.App. –Houston [1st Dist.] 2006, no pet.). 9 Retrograde Extrapolation Testimony was not a Prerequisite to Admission Dr. Johnson testified that he was unable to perform a retrograde extrapolation analysis that would have indicated the level of THC and alprazolam in Appellant’s blood at the time of the accident.

11
Kevin DWayne Kennemur v. Stategreen
texapp · 2008 · cited in 1 Texas opinions naming this issue, 2014–2014
1 sentence

2014Kennemur, 280 S.W.3d at 316 (appellant’s blood-alcohol results taken hours after the accident are probative of appellant’s intoxication even in the absence of any retrograde extrapolation because, under an impairment theory, the State need not prove appellant’s exact blood alcohol content at the time of the accident).

11

Distinguished, questioned or overruled (0)

CaseNegativeCited
No negative-treatment citations attached to this issue in Texas. Read the followed side critically anyway.

Statutes the citing opinions construe

TX § Tex. Transp. Code § 724.012 (4)

Counted by distinct opinions that both name this issue and are annotated to the section; sections every opinion cites regardless of issue are not filtered here, so read the counts against the total above.

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