  We show that the $J/\psi \rightarrow \pi^{+} \pi^{-}$ decay is a reliable
source of information for the electromagnetic form factor of the pion at
$t=M_{J/\psi}^2=9.6 {\rm GeV}^2$ by using general arguments to estimate, or
rather, put upper bounds on, the background processes that could spoil this
extraction. We briefly comment on the significance of the resulting
$F_{\pi}(M_{J/\psi}^2)$.
