The MiniBooNE detector at Fermilab observes off-axis neutrinos from
the NuMI/Minos beamline. We analyzed charged current quasi-elastic (
numu + n ---> mu + p ) events that dominate at energies below 2
GeV. This sample is used to demonstrate our understanding of the
beam. An analysis to isolate an enriched nue event sample ( nue + n
---> e + p ) is performed in the next step. The first results of the
analyses will be presented.