  When measuring quantum spins at two or more different times, the later
measurements are affected by measurement backaction occurring due to the
earlier measurements. This makes the measurement of temporal quantum
correlation functions challenging. In this paper, I propose a measurement
protocol that mitigates the effect of measurement backaction by exploiting spin
selection rules. I show that, under suitable conditions, the effect of
measurement backaction on two-time quantum correlations becomes negligible when
probing a system consisting of spins with large spin quantum numbers $l\gg s$
by coupling it to a spin-$s$ ancilla degree of freedom. A potential application
of such a measurement protocol is the probing of an array of Bose-Einstein
condensates by light.
