What is the current state of the law on privacy under s. 8 of the Charter?

Since Hunter v. Southam Inc., 1984 CanLII 33 (SCC), [1984] 2 S.C.R. 145, courts have acknowledged that the protection guaranteed under s. 8 of the Charter entails striking a balance between privacy and law enforcement interests (pp. 159-60): . . . an assessment must be made as to whether in a particular situation the public’s interest in being left alone by government must give way to the government’s interest in intruding on the individual’s privacy in order to advance its goals, notably those of law enforcement.