What is the test for a motion to dismiss for prejudicial prearrest delay?

"A defendant seeking relief for undue delay in filing charges must first demonstrate resulting prejudice, such as by showing the loss of a material witness or other missing evidence, or fading memory caused by the lapse of time. [Citation.] Prejudice to a defendant from precharging delay is not presumed. [Citations.] . . . If the defendant establishes prejudice, the prosecution may offer justification for the delay; the court considering a motion to dismiss then balances the harm to the defendant against the justification for the delay. [Citation.]" (People v. Abel (2012) 53 Cal.4th 891, 908-909, fn. omitted.)

"'We review for abuse of discretion a trial court's ruling on a motion to dismiss for prejudicial prearrest delay [citation], and defer to any underlying factual findings if substantial evidence supports them [citation].' [Citation.]" (People v. Jones (2013) 57 Cal.4th 899, 922.) "'Under the abuse of discretion standard, "a trial court's ruling will not be disturbed, and reversal of the judgment is not required, unless the trial court

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