  Let $\mathcal{X}$ be a smooth Deligne-Mumford stack which is generically a
scheme and has quasi-projective coarse moduli. If $\mathcal{X}$ has elementary
Abelian 2-group stabilizers and the coarse moduli of the inertia stack is
smooth, we show there exists a semiorthogonal decomposition of the derived
category of $\mathcal{X}$ where the pieces are equivalent to the derived
category of the components of the coarse moduli of the inertia stack.
