Violating laws that ban legislators from lobbying can carry a fine of up to $2,500 for each violation and a year in prison. Violating laws that prevent legislators from using their office for personal gain can carry a fine of up to $5,000 for each violation and a year in prison

Haley has 10 days after the committee’s ruling to appeal to the Republican-controlled House, according to state law.

How long will the hearing last?

Smith has said two days. Questioning of each witness is limited to 140 minutes — 60 minutes each for direct and cross-examination, and 10 minutes each for redirect and re-cross-examination. Attorneys will have 20 minutes each for opening and closing statements.

Hasn’t this case been decided already?

The committee found probable cause of violations on May 2 but voted to dismiss the case. But it requested more information a couple of weeks later and reopened the investigation on May 30.

Who has been subpoenaed, and what are they expected to discuss?

The subpoenas were compiled from lists submitted by attorneys from both sides.

• Rainey is expected to discuss the evidence that he gathered to file the ethics complaints against Haley and his motives.

• Also: Mike Biediger, chief executive of Lexington Medical Center; Dan Jones, the hospital’s board chairman and vice president of government relations for Time Warner Cable in South Carolina; Thad Westbrook, a former Lexington Medical board chairman and current vice chairman of its foundation; and former state Rep. Billy Boan, a lobbyist for the hospital.

Their testimony could clarify whether Haley worked for the hospital or its foundation, her role in helping the hospital win support for the heart-surgery center and whether those actions were lobbying, and her work for the foundation in soliciting donations from legislative lobbyists and the companies that they represented — some of which had business before House committees on which Haley was serving. Jones already has submitted to the committee an affidavit that Haley did not work or lobby for the hospital.

• Robert Ferrell, vice president of CDM Smith, is expected to testify on Haley’s duties with CDM Smith’s predecessor company, Wilbur Smith. He also could testify on any state contracts that the company won while Haley was employed as a consultant and whether she was a lobbyist for the company. Ferrell also has submitted an affidavit that Haley was not a lobbyist for the firm.

• Duncan McIntosh, general counsel at BlueCross BlueShield of South Carolina, and James D’Alessio, the insurer’s vice president for government affairs, could testify on why that company made donations the Lexington Medical Center Foundation and any communications it had with Haley.

• Earl Hunter, former state Department of Health and Environmental Control commissioner, could testify on Haley’s efforts — if any — to win support for Lexington’s heart-surgery center, an issue before the agency.

• Tony Denny, a lobbyist and former S.C. GOP executive director, has been asked by the committee for any documents about contributions to the hospital’s foundation and his communications with Haley.

• Greg Harris, former S.C. Ethics Commission chairman, is expected to share his views on state lobbying laws. (Along with Haley’s attorney Butch Bowers, Harris was a member of the legal team that represented then-Lt. Gov. Ken Ard, who resigned earlier this year and then pleaded guilty to violating state ethics laws.)