Matter of Singh, 25 I. & N. Dec. 670 (BIA 2012) (California conviction for stalking, in violation of Penal Code 646.9(b), is an aggravated felony crime of violence, under 18 U.S.C. 16(b), for immigration purposes because when
a course of conduct that is both serious and continuing in nature is coupled
with a credible threat to another persons safety, there is a substantial risk that
physical force may be used.), following Matter of Malta, 23 I&N Dec. 656 (BIA 2004), rev'd Malta-Espinoza v. Gonzales, 478 F.3d 1080, 1083-84 (9th Cir. 2007).