Microbial DNA challenge studies of variable number tandem repeat (VNTR) probes used for DNA profiling analysis

DNA probes commonly used for forensic DNA profiling analysis were hybridized to Hinfl digested DNA isolated from various common microbial species. Extended exposures to light sensitive film failed to detect any DNA fragments of a microbial origin following hybridizations to radio-labeled DNA insert single-locus probes (SLPs) and nonisotopically labeled oligonucleotide SLPs.