Ah interesting, thanks. Googling a bit more for ionization techniques suggests you might be right, and it might be: https://en.wikipedia.org/wiki/Matrix-assiste

Ah interesting, thanks. Googling a bit more for ionization techniques suggests you might be right, and it might be: https://en.wikipedia.org/wiki/Matrix-assisted_laser_desorption/ionization https://en.wikipedia.org/wiki/Matrix-assisted_laser_desorpti... (based on a reference in http://www.independent.co.uk/life-style/gadgets-and-tech/news/fingerprint-test-criminal-lifestyle-profile-drugs-blood-courts-trials-maldi-mass-spectrometry-a7992621.html http://www.independent.co.uk/life-style/gadgets-and-tech/new...)