Opinion Rule

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1. What is the general rule on a witness's opinion under Rule 130, Section 51?
2. Under Section 52, what must be shown for a witness's opinion on a matter requiring expertise?
3. Which ordinary-witness opinion may be received under Section 53 when a proper basis is supplied?
4. A witness has long familiarity with a colleague's handwriting and explains that basis. Is a handwriting opinion categor…
5. An expert's opinion is admitted. Must the court accept it conclusively merely because the witness has impressive creden…
6. A qualified technical witness offers an opinion supported by insufficient data and a method not reliably applied to the…
7. A stranger who briefly sees a person claims to diagnose a complex disorder requiring specialized expertise. The witness…
8. Distinguish expert opinion under Section 52 from ordinary-witness opinion under Section 53, giving an example of each r…
9. A highly credentialed expert's opinion is admitted but rests on incomplete facts and unreliable application of a method…
10. An ordinary witness offers a handwriting opinion based on years of familiarity; another offers a complex scientific con…
11. Does Section52 identify experience as a possible basis of specialized competence?
12. May an ordinary witness give an identity opinion about a person of whom the witness has adequate knowledge?