1998 | 6 Episodes

Season 1 of Der letzte Zeuge premiered on March 23, 1998.

1999 | 7 Episodes

Season 2 of Der letzte Zeuge premiered on March 10, 1999.

2000 | 8 Episodes

Season 3 of Der letzte Zeuge premiered on March 15, 2000.

2002 | 7 Episodes

Season 4 of Der letzte Zeuge premiered on May 1, 2002.

2003 | 8 Episodes

Season 5 of Der letzte Zeuge premiered on April 25, 2003.

2004 | 13 Episodes

Season 6 of Der letzte Zeuge premiered on September 3, 2004.

2005 | 5 Episodes

Season 7 of Der letzte Zeuge premiered on April 1, 2005.

2006 | 10 Episodes

Season 8 of Der letzte Zeuge premiered on January 6, 2006.

2007 | 9 Episodes

Season 9 of Der letzte Zeuge premiered on March 11, 2007.