The European Council of Legal Medicine (ECLM) on-site inspection form allows the collection of data relevant to the identification, collection, sampling and preservation of all elements that, during the on-site inspection, may be useful as forensic evidence. The aim of this study is to assess the completeness of the information collected in a large number of on-site inspections, the records of which were drawn up without the use of the ECLM on-site inspection form, in order to verify the usefulness and the application of this form. The authors present a multicentre study involving 20 Italian forensic medicine institutes. For each institute, the reports of on-site inspections carried out without the use of the ECLM on-site inspection form were collected and a forensic pathologist was asked to analyse the individual cases and to identify, for each case, the presence or absence of information regarding all the points examined by the ECLM on-site inspection form. A practical database was prepared and sent to each institute for this analysis. Data were collected and analysed from a total of 1721 on-site inspection reports. Our results document that certain items on the ECLM on-site inspection form are not always investigated in reports written without the use of this tool. The use of the ECLM on-site inspection form proves to be a valid tool to assist the forensic pathologist during the on-site inspection. We therefore hope that the forms developed by the ECLM will be systematically adopted in the forensic practice of the forensic pathologist.