  The MiniBooNE Experiment has contributed substantially to beyond standard
model searches in the neutrino sector. The experiment was originally designed
to test the $\Delta m^2$~1 eV$^2$ region of the sterile neutrino hypothesis by
observing $\nu_e$ ($\bar\nu_e$) charged current quasi-elastic signals from a
$\nu_\mu$ ($\bar\nu_\mu$) beam. MiniBooNE observed excesses of $\nu_e$ and
$\bar\nu_e$-candidate events in neutrino and anti-neutrino mode, respectively.
To date, these excesses have not been explained within the neutrino Standard
Model ($\nu$SM), the Standard Model extended for three massive neutrinos.
Confirmation is required by future experiments such as MicroBooNE. MiniBooNE
also provided an opportunity for precision studies of Lorentz violation. The
results set strict limits for the first time on several parameters of the
Standard Model-Extension, the generic formalism for considering Lorentz
violation. Most recently, an extension to MiniBooNE running, with a beam tuned
in beam-dump mode, is being performed to search for dark sector particles. This
review describes these studies, demonstrating that short baseline neutrino
experiments are rich environments in new physics searches.
