Indiana State Police are assisting the Indiana inspector general with an investigation into horse racing as legislators prepare to study state gaming.Police would not specify what allegations are being investigated, but some who have worked within the industry told 6News' Joanna Massee they have encountered numerous problems, including impartiality by the Indiana Horse Racing Commission.Veterinarian Dr. Jerrilee Cave, who practiced on racing horses until last year when the commission suspended her license, said she was recently interviewed by representatives from state police and the state Inspector General's Office.Cave came under investigation when she was accused of giving a horse a shot that led to its death at Hoosier Park, but she denies that claim."Basically, I feel like, you know, when you sign for your license with the commission, that you basically lose all your civil rights," she said.Last April, State Sen. Luke Kenley, R-Noblesville, sent a letter to Indiana Horse Racing Commission Chairman Sarah McNaught informing her that he had asked state police to "investigate persistent rumors of illegal activities."Rep. Bob Cherry, R-Greenfield, said he wants to sit on the Interim Study Committee on Gaming, which will study, among other things, issues related to the distribution of money between horsemen and horse racing tracks."I've heard complaints. I don't have any facts," he said. "I've heard complaints, and maybe if there is an investigation, they'll come out."Indiana Horse Racing Commission Executive Director Joe Gorajec released a statement on Wednesday saying, "This commission is very proactive with regard to enforcing our regulations in order to keep the sport clean. To the extent we can cooperate with state police or any other body to help ensure that, then we'll be ready and willing to cooperate."Hoosier Park Racing and Casino General Manager Jeff Smith said he was not aware of any official investigation."The integrity of the horse racing industry is of the utmost importance," he said. "Not only to the commission, but for all of us here at Hoosier Park Racing & Casino."