Bacteria-Like Particles DNA (BLP-DNA) are for extraction control purposes of bacterial DNA and intended to help laboratories to control the quality of nucleic acid extraction from e.g. clinical samples by spiking the BLP-DNA into the sample before starting the respective extraction protocol. BLP-DNA is intended to be used as patient-side extraction control in combination with gerbion Real Time PCR kits. After amplification extracted DNA is identified in the VIC/JOE/HEX channel or 498-580 detection channel of the Roche LightCycler 480 II, respectively. The Control DNA of the respective kits can be substituted by BLP-DNA. The BLP-DNA can also be used to support laboratory staff training in molecular assays from extraction phase through amplification to detection.