Wiktionary
n. A state of equilibrium, or a desire to attain such, between surveillance and sousveillance.
Wikipedia
Equiveillance is a state of equilibrium, or a desire to attain a state of equilibrium, between surveillance and sousveillance. It is sometimes confused with transparency. This balance (equilibrium) allows the individual to construct their own case from evidence they gather themselves, rather than merely having access to surveillance data that could possibly incriminate them.
Sousveillance, in addition to transparency, can be used to preserve the contextual integrity of surveillance data. For example, a lifelong capture of personal experience could provide "best evidence" over external surveillance data, to prevent the surveillance-only data from being taken out of context.