  In this work we investigate the usefulness of nuSTORM as a probe of two
new-physics scenarios which are sterile neutrinos and non-unitarity of the
neutrino mixing matrix. For the sterile neutrino we show the importance of the
neutral current events when combined with the charged current events to
constrain the effective mixing angle, $\theta_{\mu \mu}$, and the sterile
mixing angles $\theta_{14}$ and $\theta_{24}$. We also study the role nuSTORM
will play in the study of neutrino oscillation physics if the three generation
neutrino mixing matrix is non-unitary. In this context we elucidate the role of
nuSTORM, considering both charged current and neutral current events, in
constraining the various non-unitarity parameters such as $\alpha_{11}$,
$|\alpha_{21}|$ and $\alpha_{22}$.
