Further details of the properties of different loci can be found in the text. Heteroplasmy describes the presence of two or more different mitochondrial DNA sequences in the same cell, or individual. FBI CODIS, US Federal Bureau of Investigation Combined DNA Index System; HVS, hypervariable site; Mb, megabase; mtDNA, mitochondrial DNA; SGM, second generation multiplex; STR, short tandem repeat.