  We describe an approach that allows us to deduce the limiting return times
distribution for arbitrary sets to be compound Poisson distributed. We
establish a relation between the limiting return times distribution and the
probability of the cluster sizes, where clusters consist of the portion of
points that have finite return times in the limit where random return times go
to infinity. In the special case of periodic points we recover the known
P\'olya-Aeppli distribution which is associated with geometrically distributed
cluster sizes. We apply this method to several examples the most important of
which is synchronisation of coupled map lattices. For the invariant absolutely
continuous measure we establish that the returns to the diagonal is compound
Poisson distributed where the coefficients are given by certain integrals along
the diagonal.
