Can a witness be corroborated in a criminal case even if they have not been given any instructions?

However, even when accomplice instructions are necessary, but are not given, we will not find prejudice if the witness's testimony was sufficiently corroborated. (People v. Boyer (2006) 38 Cal.4th 412, 467.) " ' "Such [corroborative] evidence 'may be slight and entitled to little consideration when standing alone. [Citations.]' " [Citation.] "Corroborating evidence 'must tend to implicate the defendant and therefore must relate to some act or fact which is an element of the crime but it is not necessary that [such] evidence be sufficient in itself to establish every element of the offense charged.' [Citation.]" [Citation.]' [Citation.]" (Ibid.)