California, United States of America
The following excerpt is from People v. Young, B264878 (Cal. App. 2016):
The trial court's determination of whether a witness qualifies as an expert is a matter of discretion that will not be disturbed absent a showing of manifest abuse.
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(People v. Jones (2012) 54 Cal.4th 1, 57; People v. DeHoyos (2013) 57 Cal.4th 79, 128-129.)
2. Ruling
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