Surveillance via Hair

How do I surveille thee?* Let me count the ways...™


It may now be possible to establish a geolocation trail by analyzing hair:

A group of researchers from the LGC Chemical Metrology Laboratory in the UK havs teamed up with the University of Oviedo, Spain. Together they have developed a "laser ablation" method that makes it possible “to detect variations in the sulfur isotopes of a single hair over time”, says Science Daily. This means that scientists will be able to track a person’s movements between different countries, as the sulphur isotopes reveal changes in eating habits.

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Surveillance via Residues on Paper
Surveillance via Mobile Phones
Surveillance via Pizza Delivery
Surveillance via Abandoned DNA
Surveillance via Tire Pressure Monitoring Systems

* with apologies to Elizabeth Barrett Browning