We dont know whether it is all her experience catching criminals (on TV) or her good looks, but actress Mariska Hargitay sure does have the power of persuasion over Members on Capitol Hill.Just a little over a month after visiting the Hill to ask Members to hold a hearing on the backlog of untested rape kits, the Law and Order: Special Victims Unit star will return Thursday to testify about the issue before the House Judiciary Subcommittee on Crime, Terrorism and Homeland Security.HOH caught up with Hargitay on Tuesday when she appeared at the Newseum for the premiere of the documentary Telling Amys Story, about a woman shot and killed by her husband after a history of abuse. Hargitay said shell testify on behalf of her Joyful Heart Foundation, which she founded in 2004 to empower sexual assault victims.It feels very, very good, Hargitay said. The reason we were here last time was to push for a hearing. We got it.So is she excited about her first-ever time speaking at a Congressional hearing? Nervous?E, all of the above, she joked.Submit your hot tips, juicy gossip or comments here.Cant get enough HOH? Get a midday dose of fun and gossip with HOHs One-Minute Recess, delivered to your inbox daily. Sign up here because everyone deserves more recess.