I am going to print here what Raffey below linked to because people are lazy:

"Witness — Beesons Incompetent. — Section 394 of the Civil Practice Act provides: “ No Indian or Negro shall be allowed to testify as a witness in any action in which a white person is a party.”

1 Idem. -Section 14 of the Criminal Act provides: “No Black, or Mulatto person, or Indian shall be allowed to give evidence in favor of, or against a White man.” Held, that the words, Indian, Negro, Black and White, are generic terms, designating race. That, therefore, Chinese and all other peoples not white, are included in the prohibition from being witnesses against Whites."

Nuff said. thanks for that link.