  We develop a formalism which allows to study correlations of charged UHECR
with potential sources without using any Galactic Magnetic Field (GMF) model.
The method is free of subjective chose of parameters on which the significance
of correlations depends strongly. We show that correlations of the AGASA
dataset with BL Lacs (found previously after reconstruction of particle
trajectories in a specific GMF) are present intrinsically and can be detected
without reference to a particular model of magnetic field.
