Lt-Col Duncan Scott would take the witness stand, said commission spokesman Tshepo Mahlangu.
Scott helped draft the plan the police used in the attempt to disperse striking mineworkers near Lonmin’s platinum mine in Marikana last year.
Several police officials involved in the operation have referred to the police plan as the “Scott plan.”
Police shot dead 34 striking mineworkers while trying to disperse them on August 16, 2012.
Ten other people, including two policemen and two security guards, were killed in the preceding week.
The commission, which is sitting in Centurion, is investigating the circumstances surrounding the deaths. It is chaired by retired judge Ian Farlam.