Preferential treatment

The following news article reports on a new policy agenda envisioned by Chicago’s Mayor Richard M. Daley:

http://newsblogs.chicagotribune.com/clout_st/2009/07/daley-backs-business-setasides-for-gayowned-firms.html

The text of this article is as follows:

• 
  Mayor Richard Daley said today he would support an effort to give preferential treatment in city contracting to businesses owned by gays and lesbians.
  The city already sets aside a portion of contracts for businesses owned by blacks, Hispanics, Asians and women. Now Ald. Thomas Tunney (44th), the City Council’s openly gay member, wants companies owned by gays and lesbians to enjoy the same consideration in doing business with the city.
  “I think it’s good,” said Daley, who enjoys strong support from gays and lesbians. “It helps small businesses. It helps businesses grow in the city, and that’s what you want.”

How does this help small business?

How will the City Administration verify that the owners of business are gays and lesbians? Will there be a gay and lesbian audit committee? If there will be an audit committee then will the committee have a list of sexual activities that the business owners must perform in order to qualify as gays and lesbians?