  A construction of a quasi-random potential for cold atoms using dark states
emerging in $\Lambda$ {level configuration} is proposed. Speckle laser fields
are used as a source of randomness.
  Anderson localisation in such potentials is studied and compared with the
known results for the speckle potential itself. It is found out that the
localisation length is greatly decreased due to the non-linear fashion in which
dark-state potential is obtained. In effect, random dark state potentials
resemble those occurring in random Kronig-Penney-type Hamiltonians.
