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The chirality and helicity of linearly polarised Laguerre-Gaussian (LG) beamsare examined. Such a type of light possesses a substantial longitudinal fieldwhen its beam waist is sufficiently small and so gives rise to non-zerochirality and helicity. In the simplest case of a doughnut beam of windingnumber $\ell=1$ and another identical to it but has $\ell= -1$, we obtaindifferent chirality and helicity distributions at the focal plane $z=0$. Wealso show that this chiral behaviour persists and the patterns evolve so thaton planes at $z<0$ and $z>0$ the beam convergence contributes differently tothe changes in the chirality and helicity distributions.

Chirality and helicity of optical vortices of small beam waists