An important open research topic today is to understand the relevance that dark matter halo substructure may have for dark matter searches. In the standard cosmological model halo substructure or subhalos are predicted to be largely abundant inside larger halos for example galaxies such as ours and are thought to form first and later merge to form larger structures. Dwarf satellite galaxies-the most massive exponents of halo substructure in our own galaxy-are already known to be excellent target