But I will say it can't hurt to have it included. Just ask for a criminal background check for immigration purposes at the live Scan location. The process is simple.
I went through LA cosulate. I used both live Scan and a local sheriff's report notorized by their office. I would say the live Scan was not needed by the level of analysis done at the consulate. Note the results of the live Scan were very short, no criminal records found based on fingerprints.