The phrase references particulate matter, formulated to be innocent, used for surveillance or monitoring functions, with specific emphasis on its accessibility in a particular geographic location. As an example, a house owner would possibly seek for a substance secure for pets and kids to discreetly observe animal motion round their property.
The worth of using such supplies lies within the capability to assemble data subtly and ethically, relying on the applying and related laws. Traditionally, comparable substances, although not at all times unhazardous, have been employed in crime scene investigations and scientific analysis to hint motion patterns and interactions. Its enchantment stems from the need for unobtrusive knowledge assortment.
