California, United States of America
The following excerpt is from People v. Villalobos, H043058 (Cal. App. 2018):
" 'In order to establish a claim of ineffective assistance of counsel, defendant bears the burden of demonstrating, first, that counsel's performance was deficient because it "fell below an objective standard of reasonableness [] . . . under prevailing professional norms." [Citations.] . . . If a defendant meets the burden of establishing that counsel's performance was deficient, he or she also must show that counsel's deficiencies resulted in prejudice, that is, a "reasonable probability that, but for counsel's unprofessional errors, the result of the proceeding would have been different." [Citation.]' [Citation.]" (People v. Lopez (2008) 42 Cal.4th 960, 966.)
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