It is still unknown how many types of drugs were used by experimenters to drug subjects without their consent or how many people it was done to because many files or documents concerning it were destroyed in 1973. Some  files are still around. Some of the documents repeated on the documents pages are excerpts not always in the order it was typed due to the length of the documents and or the topics in the excerpts.

From Page 3 of declassified Mklutra documents: "PROJECT  MKULTRA,  THE  CIA'S  PROGRAM  OF RESEARCH  IN  BEHAVIORAL  MODIFICATION

WEDNESDAY,  AUGUST  3,  1977

U.S.  SENATE, SELECT  COMMITTEE  ON  INTELLIGENCE, AND  SUBCOMITTEE  ON  HEALTH AND  SCIENTIFIC  RESEARCH OF  THE  COMMITTEE  ON  HUMAN  RESOURGES, Washington,  D.C.

Perhaps  most  disturbing  of  all  was  the  fact  that  the  extent  of  experimentation  on  human  subjects  was  unknown.  The  records  of  all these  activities  were  destroyed  in  January  1973,  at  the  instruction  of then  CIA  Director  Richard  Helms. ( other Mk-Ultra documents claim it was Gottlieb who ordered the documents be destoryed).

We  believed  that  the  record,  incomplete  as  it  was,  was  as  complete as  it  was  going  to  be.  Then  one  individual,  through  a  Freedom  of  Information  request,  accomplished  what  two  U.S.  Senate  committees could  not.  He  spurred  the  agency  into  finding  additional  records  pertaining  to  the  CIA's  program  of  experimentation  with  human  subjects. These  new  records  were  discovered  by  the  agency  in  March.  Their existence  was  not  made  known  to  the  Congress  until  July.

The  records  reveal  a  far  more  extensive  series  of  experiments  than had  previously  been  thought.  Eighty-six  universities  or  institutions were  involved.  NeV  instances  of  unethical  behavior  were  revealed. The  intelligence  community  of  this  Nation,  which  requires  a  shroud of  secrecy  in  order  to  operate,  has  a  very  sacred  trust  from  the American  people.  The  CIA's  program  of  human  experimentation  of the  fifties  and  sixties  violated  that  trust.  It  was  violated  again  on  the day  the  bulk  of  the  agency's  records  were  destroyed  in  1973.  It  is violated  each  time  a  responsible  official  refuses  to  recollect  the  details of  the  program.  The  best  safeguard  against  abuses  in  the  future  is  a complete  public  accounting  of  the  abuses  of  the  past." end of quote from Mkultra documents released under the freedom of information act. documents continued next page.