  In this contribution, CTAs potential role in detection of particle dark
matter in the context of other detection approaches is briefly discussed for an
audience of gamma-ray astronomers. In particular searches for new particles at
the large hadron collider and detection of dark matter particles in deep
underground detectors are considered. We will focus on Weakly Interacting
Massive Particles (WIMP). Approaches will be compared in terms of (a)
robustness of sensitivity predictions, (b) timeline and (c) reach. The estimate
of the reach will be model-dependent. Given our ignorance about the nature of
dark matter, and the complementarity of detection techniques even within a
given framework (e.g. Supersymmetry), the trivial conclusion is that we might
need all approaches and the most sensitive experiments. Our discussion will be
somewhat more restrictive in order to be able to be more concrete. With the
caveat of incompleteness, under the assumption that the WIMP paradigm describes
nature, CTA is more likely to discover multi-TeV WIMP dark matter, whereas for
lower masses direct detection and LHC has significantly better prospects. We
will illustrate this conclusion with examples from foremost Supersymmetry, but
mention effective field theory or simplified models. We will comment on a few
models predicting high mass WIMPs, in particular 1 TeV higgsino and wino WIMPs,
as well as Minimal Dark Matter and point out the relevance of updated
measurements of the anomalous magnetic moment of the muon for CTAs role in
searches for Supersymmetry.
