  For a projective measurement, the Born rule provides the probability for an
outcome in terms of the inner product between a projector and a quantum state.
If the projector represents a pure entangled state and the state for a
composite system is separable, then we cannot get probability 1 for the
outcome. This insight delivers a single condition for entanglement detection.
By applying local unitary transformations from the Clifford group, we turn one
condition into many. Furthermore, we present two equivalent schemes---one
employs global and other requires local projective measurements---to test these
conditions in an experiment. Here, a global measurement is characterized by an
orthonormal basis that holds local-unitary-equivalent entangled kets. Whereas a
local-measurement setting is specified by mutually unbiased bases assigned to
the subsystems. We also supply a straightforward (computer) algorithm to
generate all the conditions and then to check whether a state is shown
entangled or not by these conditions. Finally, we demonstrate every element of
our schemes by considering several well-known examples of entangled kets and
states.
