. >> reporter: richard pratt is the director of health services. after requests by "america tonight", he agreed to speak to us briefly, outside his office. >> before it was privatized and after privatisation, what is the difference in staffing levels, when it comes to medical care? >> staffing levels are the same. in fact, i would tell you that corizon's staffing levels have been coming up on a monthly basis, to the point that the hours they were working with their existing staff exceeded the contract requirements. >> so you are confident that corison is providing adequate good health care within the prison system. >> i am. >> that is not true, according to a prison watchdog group. >> the american friend committee found staffing levels and health care spending plumb eted after the state privatized health services. even though legislators were promised the same services at a low cost. >> care. >> reporter: are they saving system. >> i don't know. >> are you paying more or they public? >> i am not sure what the numbers were in public. it's probably a