Scientific examination can provide evidence that is inaccessible through visual inspection or documentary research alone. Materials, pigments, supports, binders, construction methods and later interventions may all contain information relevant to dating, attribution, condition or authenticity. Technical analysis is most useful when it is directed at a clearly defined question and interpreted within the broader historical and material context of the work.

The appropriate method depends on the object, the issue under investigation and the degree of intervention that can reasonably be justified. Imaging techniques, microscopy, pigment and material analysis, radiography, infrared examination and other specialist procedures may reveal alterations, underdrawing, restorations, compositional changes or materials inconsistent with a proposed date or attribution. The significance of those findings depends not only on the result itself, but also on how securely it can be related to known artistic practices and production methods.

Testing is undertaken in collaboration with recognised laboratories, conservators, scientific institutions and other qualified specialists where the nature of the examination requires it. The selection of a technique should remain proportionate to the question being addressed, with particular care given to sampling, preservation and the limits of interpretation. Scientific evidence is powerful, but it is not self-explanatory.

Technical findings must therefore be considered alongside provenance, historical research, stylistic analysis and the physical examination of the work. A result may exclude certain possibilities, strengthen an attribution or identify areas requiring further enquiry, but it does not automatically resolve questions of authorship or authenticity. The objective is to use scientific evidence as one part of a broader analytical framework, with its weight assessed according to the reliability, relevance and limitations of the analysis.