How are the bilateral and unilateral approaches to conspiracy different? In the bilateral approach, one person is always guilty.whereas in the unilateral approach more than one must be. In the bilateral approach two people are sometimes guilty, whereas in the unilateral approach only one can be. In the bilateral approach, at least two people are always guilty, whereas in the unilateral approach only one can be. In the bilateral approach, there is no real guilt or innocence, whereas in the unilateral approach there always is.