mobilising and CSIB/12/1996

My client recently lost an ESA appeal.  In the statement of reasons the judge states that the tribunal felt my client could use a wheelchair.  The GP clearly states in the appeal papers that he feels using a wheelchair would be detrimental to my client’s health CPAG states (p.203) that this should be taken into account and client should be treated as being incapable of the activity.  CSIB/12/1996 is cited via footnote.  I cannot find this anywhere.  Can anyone point me in the right direction.  Has anybody got a copy?