The chiral interpretation of twin bands in odd-odd nuclei was investigated in the interacting boson fermion-fermion model. The analysis of the wave functions has shown that the possibility far angular moments of the valence proton, neutron and care to find themselves in the favorable, almost orthogonal geometry is present, but not dominant. Such behavior is found to be similar in nuclei where bath the level energies and the electromagnetic decay properties display tile chiral pattern, as well as in those where only the level energies of the corresponding levels in the twin bands are close together. The difference in the structure of the two types of chiral candidates nuclei can be attributed to different beta and gamma fluctuations, induced by the exchange bason-fermion interaction of the interacting boson fermion-fermion model. In both cases the chirality is weak and dynamic.
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