In what circumstances will a defendant be granted immunity from prosecution if his arraignment has been too long?

In People v. Morse (1970) 4 Cal.App.3d Supp. 7, 84 Cal.Rptr. 703, the appellate department of the superior court reversed a municipal court order which had dismissed a misdemeanor charge on account of a lapse of six days between arrest and arraignment. The appellate court concluded (at pp. 9-10, 84 Cal.Rptr. at p. 704) that "whatever other remedies may be available to a defendant whose arraignment is unduly delayed, immunity from prosecution is not one of them."