expert testimony requirement (Illinois) · Go Syfert
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expert testimony requirement in Illinois

6 Illinois opinions name it 1 courts 1979–2008 0 in the last five years

The cases below were cited by Illinois 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 (2)

CaseFollowedCited
Orange County Social Services Agency v. Lorenzo M.green
calctapp · 1991 · cited in 2 Illinois opinions naming this issue, 2008–2008
2 sentences

2008See In re Jennifer A., 103 Cal.App.4th 692, 708 , 127 Cal.Rptr.2d 54, 65 (2002) (citing California Court Rule 1439(i) and finding that a parent could waive application of the Act's procedural requirements so long as the waiver is knowing and voluntary); see also, e.g., In re Riva M., 235 Cal.App.3d 403, 412 , 286 Cal.Rptr. 592, 597 (1991) (finding the father forfeited any error in the use of the clear-and-convincing standard and the failure to require expert testimony by not objecting).

2008See In re Jennifer A., 103 Cal.App.4th 692, 708 , 127 Cal.Rptr.2d 54, 65 (2002) (citing California Court Rule 1439(i) and finding that a parent could waive application of the Act's procedural requirements so long as the waiver is knowing and voluntary); see also, e.g., In re Riva M., 235 Cal.App.3d 403, 412 , 286 Cal.Rptr. 592, 597 (1991) (finding the father forfeited any error in the use of the clear-and-convincing standard and the failure to require expert testimony by not objecting).

22
In Re Jennifer A.green
calctapp · 2002 · cited in 2 Illinois opinions naming this issue, 2008–2008
2 sentences

2008See In re Jennifer A., 103 Cal.App.4th 692, 708 , 127 Cal.Rptr.2d 54, 65 (2002) (citing California Court Rule 1439(i) and finding that a parent could waive application of the Act's procedural requirements so long as the waiver is knowing and voluntary); see also, e.g., In re Riva M., 235 Cal.App.3d 403, 412 , 286 Cal.Rptr. 592, 597 (1991) (finding the father forfeited any error in the use of the clear-and-convincing standard and the failure to require expert testimony by not objecting).

2008See In re Jennifer A., 103 Cal.App.4th 692, 708 , 127 Cal.Rptr.2d 54, 65 (2002) (citing California Court Rule 1439(i) and finding that a parent could waive application of the Act's procedural requirements so long as the waiver is knowing and voluntary); see also, e.g., In re Riva M., 235 Cal.App.3d 403, 412 , 286 Cal.Rptr. 592, 597 (1991) (finding the father forfeited any error in the use of the clear-and-convincing standard and the failure to require expert testimony by not objecting).

22

Distinguished, questioned or overruled (0)

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

Also cited on this issue (3)

CaseCitedYears
Voykin v. Estate of DeBoer green
ill · 2000
2 sentences

2003In support of the expert testimony requirement, the majority relies on Voykin v. DeBoer, 192 Ill. 2d 49 (2000).

2003In support of the expert testimony requirement the majority relies on Voykin v. DeBoer, 192 Ill.2d 49 , 248 Ill.Dec. 277 , 733 N.E.2d 1275 (2000).

22003–2003
Hill v. Squibb & Sons, ER green
mont · 1979
2 sentences

1991(See Hill v. Squibb & Sons, E.R., 181 Mont. at 206 , 592 P.2d at 1388 .) These courts have also held that requiring expert testimony in failure-to-warn cases involving prescription drugs is analogous to the expert testimony requirement in medical malpractice actions.

1991(See Hill v. Squibb & Sons, E.R., 181 Mont. at 206 , 592 P.2d at 1388 .) These courts have also held that requiring expert testimony in failure-to-warn cases involving prescription drugs is analogous to the expert testimony requirement in medical malpractice actions.

11991–1991
Walski v. Tiesenga green
ill · 1978
2 sentences

1979We note initially that this requirement “is broadly recognized throughout the country. [Citations.]” (Walski v. Tiesenga (1978), 72 Ill. 2d 249, 257 , 381 N.E.2d 279, 282 ; Annot., 81 A.L.R. 2d 597 (1962); Annot., 40 A.L.R. 3d 515 (1971).) Nevertheless, plaintiff argues that the expert testimony requirement elevates custom and practice to conclusive evidence of due care, and, thereby, permits the medical profession to set its own standards.

1979We note initially that this requirement “is broadly recognized throughout the country. [Citations.]” (Walski v. Tiesenga (1978), 72 Ill. 2d 249, 257 , 381 N.E.2d 279, 282 ; Annot., 81 A.L.R. 2d 597 (1962); Annot., 40 A.L.R. 3d 515 (1971).) Nevertheless, plaintiff argues that the expert testimony requirement elevates custom and practice to conclusive evidence of due care, and, thereby, permits the medical profession to set its own standards.

11979–1979

Where else courts name it

CA 17 (1989–2025) PA 12 (1959–2018) TN 8 (2000–2017) DC 7 (1984–2012) AK 6 (2001–2016) IL 6 (1979–2008) CT 6 (1992–2020) NY 6 (1977–2012) MS 6 (1997–2025) FL 6 (1973–2015) AL 5 (1993–2013) TX 5 (2006–2025) OH 4 (1998–2007) KS 4 (1992–2024) KY 4 (2017–2019) MN 4 (1987–2016) NJ 3 (1999–2019) NC 3 (2013–2021) UT 3 (2017–2024) IA 3 (1992–2019) SD 3 (1988–2025) MD 2 (1992–2011) MI 2 (1974–2015) DE 2 (1976–2019) MT 2 (1993–2001) MA 2 (2005–2025) WI 2 (1997–2008) NV 2 (1991–2021) IN 2 (2008–2008) GA 2 (2025–2026)

Opinions by the citing court's state. A doctrine retained in one state and abandoned in another shows up here as a year span that stalls.

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