Strauss-Kahn is accused of attempting to rape the maid and forcing her to have oral sex in his room at the Sofitel hotel in /*New York City*/.
Two people familiar with the investigation told The Associated Press that DNA pulled from a substance on the maid's shirt matches the DNA sample Strauss-Kahn provided last week.
Strauss-Kahn's attorney has said evidence in this case will not be consistent with a forcible encounter. This may signal a defense based on consensual sex.
The one-time French presidential contender has been charged with a criminal sex act, attempted rape and sexual abuse and is free on $1 million bail, under house arrest at a lower Manhattan apartment.
The Associated Press contributed to this report.