Athens - A total of 73 athletes have fallen foul of anti-doping rules at the Olympics since tests were first introduced at the 1968 games.
Here is a list of athletes caught for breaches of doping laws following the latest cases announced on Tuesday (athlete name, country, sport)
1968 MEXICO CITY (1)
Hans-Gunnar Liljenwall (SWE) Modern Pentathlon/alcohol
1972 MUNICH (7)
Bakhaava Buidaa (MGL) Judo/caffeine
Miguel Coll (PUR) Basketball/ephedrine
Rick Demont (USA) Swimming/ephedrine
Jaime Huelamo (SPA) Cycling/coramine
Walter Legel (AUT) Weightlifting/ephedrine
Mohamad Nasehi Ar Jomand (IRI) Weightlifting/ephedrine
Aad van den Hoek (NED)/ Cycling/coramine
1976 MONTREAL (11)
Blagoi Blagoev (BUL) Weightlifting/anabolic steroids
Mark Cameron (USA) Weightlifting/anabolic steroids
Paul Cerrutti (MON) Shooting/amphetamines
Valentin Hristov (BUL)/ Weightlifting/anabolic steroids
Dragomir Ciorosian (ROM) Weightlifting/fencanfamine
Phillip Grippaldi (USA) Weightlifting/anabolic steroids
Zbigniew Kaczmarek (POL) Weightlifting/anabolic steroids
Arne Norback (SWE) Weightlifting/anabolic steroids
Petr Pavlasek (CZE) Weightliftin/anabolic steroids
Danuta Rosani (POL) Athletics/anabolic steroids
1980 MOSCOW (0)
1984 LOS ANGELES (12)
Serafin Grammatikopolous (GRE) Weightlifting/nandrolone
Vesteinn Hafsteinsson (ICE) Athletics/nandrolone
Tomas Johansson (SWE) Wrestling/methenolone
Stefan Laggner (AUT) Weightlifting/nandrolone
Goran Pefferson (SWE) Weightlifting/nandrolone
Eiji Shimomura (JPN) Volleyball/testosterone
Mikiyasu Tanaka (JPN) Volleyball/ephedrine
Ahmed Tarbi (ALG) Weightlifting/nandrolone
Mahmoud Tarha (LEB) Weightlifting/nandrolone
Gianpaolo Urlando (ITA) Athletics/testosterone
Martti Vainio (FIN) Athletics/methenolone
Anna Verouli (GRE) Athletics/nandrolone
1988 SEOUL (10)
Alidad (AFG) Wrestling/furosemide
Kerrith Brown (GBR) Judo/furosemide
Mitko Grablev (BUL) Weightlifting/furosemide
Angel Genchev (BUL) Weightlifting/furosemide
Ben Johnson (CAN) Athletics/stanozolol
Fernando Mariaca (SPA) Weightlifting/pemoline
Jorge Quesada (SPA) Modern pentathlon/propranolol
Kalman Scengeri (HUN) Weightlifting/stanozolol
Andor Szanyi (HUN) Weightlifting/stanozolol
Alexander Watson (AUS) Modern Pentathlon/caffeine
1992 BARCELONA (5)
Madina Biktagirova (BLR) athletics/norephedrine
Bonnie Dasse (USA) athletics/clenbuterol
Jud Logan (USA) athletics/clenbuterol
Nijole Medvedieva (LIT) athletics/mesocarde
Wu Dan (CHN) volleyball/strychnine
1996 ATLANTA (2)
Natalya Shekhodanova (RUS) athletics/stanozolol
Iva Prandzheva (BUL) athletics/metadienone
2000 SYDNEY (9)
Ivan Ivanov (BUL) weightlifting/furosemide
Sevdalin Minchev (BUL) weightlifting/furosemide
Izabela Drganeva (BUL) weightlifting/furosemide
Andris Reinholds (LAT) rowing, single sculls/nandrolone
Andreea Raducan (ROM) gymnastics/pseudoephedrine
Fritz Aanes (NOR) wrestling/norandrosterone and norethiocholanolone
Ashot Danielyan (ARM) weightlifting/stanozolol
Alexander Leipold (GER) wrestling/nandrolone
Oyunbileg Purevbaatar (MGL) wrestling/furosemide
2004 ATHENS (16-)
Andrew James Brack (GRE) Baseball/stanozolol
Derek Nicholson (GRE) Baseball/hydrochloro-thiazide
David Munyasi (KEN) Boxing/cathine
Aye Khine Nan (MYN) Weightlifting/anabolic steroid
Sanamacha Chanu (IND) Weightlifting/diuretic
Viktor Chislean (MDV) Weightlifting-X
Zoltan Kecskes (HUN) Weightlifting-X
Sule Sahbaz (TUR) Weightlifting-X
Pratima Kumari (IND) Weightlifting-X
Wafa Ammouri (MAR) Weightlifting-X
Olga Shchukina (UZB) Athletics/clenbuterol
Albina Khomich (RUS) Weightlifting/steroid
Leonidas Sampanis (GRE) Weightlifting/testosterone
Irina Korzhanenko (RUS) Athletics/stanozolol
Robert Fazekas (HUN) Athletics/drug test manipulation
Aleksey Lesnichiy (BLR) Athletics/clenbuterol
(Note: X-denotes substance not released) 
