Patent ID: 7970551

Claim:
A method of providing information on the contamination of DNA samples by persons involved in the processing of the DNA samples, the processing of the DNA samples being applied to a number of samples and a number of negative controls, the processing of the DNA samples involving one or more persons, the processing of the DNA samples including defining a type of DNA information being analysed for and analysing for variation within the type of DNA information; the method of providing information on the contamination of the DNA samples including: a) determining the variation within the type of DNA information being analysed for in respect of a selected person from amongst the one or more of the persons involved in the processing of the DNA samples; b) determining the number of the samples and/or the negative controls contaminated by the selected person for whom the type of DNA information has been determined in step a) due to the detection of the variation within the type of DNA information corresponding to their variation within the type of DNA information in the samples and/or the negative controls; c) determining what proportion of the samples and/or the negative controls are handled by the selected person.