Trucheck™ detects circulating tumour cells (CTCs) and clusters of these CTCs which are released by malignant tumours, but not from non-cancerous (normal / benign tumour / inflammatory) tissue. Trucheck™ intelli can distinguish ~70 types of solid tumours which account for ~81% of all cancer cases and ~84% of all cancer related deaths in Europe. Trucheck™ has a 92.1% sensitivity in detection of cancers across all stages and types. Further Trucheck™ intelli has a 93.1% accuracy in determining the tissue or organ of origin in positive cases. Trucheck™ displays a specificity of 99.9% (versus healthy individuals). Trucheck™ detects cancers irrespective of the extent of the disease, thus even early-stage cancers are reliably observed.