  Searches for third-generation squarks in fully hadronic final states are
presented using data samples corresponding to integrated luminosities of 19.4
or 19.7 inverse femtobarns, collected at a centre-of-mass energy of 8 TeV with
the CMS detector at the LHC. Three mutually exclusive searches are presented,
each optimized for a different decay topology. They include a multijet search
requiring one fully reconstructed top quark, a dijet search requiring one or
two jets originating from b quarks, and a monojet search. No excesses above the
standard model expectations are seen, and limits are set on top and bottom
squark production in the context of simplified models of supersymmetry.
