  A model-independent search for deviations from the Standard Model prediction
has been performed in e+p and e-p collisions at HERA using H1 data. All
experimentally measurable event topologies involving isolated electrons,
photons, muons, neutrinos and jets with high transverse momenta have been
investigated. A good agreement with the Standard Model prediction is found in
most of the event classes. A new algorithm has been developed to look for
regions with large deviations from the Standard Model in the invariant mass and
sum of transverse momenta distributions and to quantify the significance of the
fluctuations observed. The largest deviation is found in topologies with an
isolated muon, missing transverse momentum and a jet which confirms previous
observations. About 2% of hypothetical Monte Carlo experiments would produce
deviations more significant than the one observed in the corresponding
distribution of sum of transverse momenta.
