What is the burden of proving that there is an unreliable identification procedure?

"The defendant bears the burden of demonstrating the existence of an unreliable identification procedure. [Citations.] 'The question is whether anything caused defendant to "stand out" from the others in a way that would suggest the witness should select him.' [Citation.]" (People v. Cunningham (2001) 25 Cal.4th 926, 989990, 108 Cal.Rptr.2d 291, 25 P.3d 519.) "Moreover, there must be a 'substantial likelihood of irreparable misidentification' under the ' " 'totality of the circumstances' " ' to warrant reversal of a conviction on this ground." (Ibid .)

[199 Cal.Rptr.3d 408]

B. Curbside Lineup