1.   ATLANTA - Inspectors general at two federal agencies are reviewing allegations that a laboratory that processed drug tests for Delta Air Lines falsified documents and misinterpreted results.

2.   AFP results are sometimes misinterpreted because of the presence of twins or because of a miscalculation in dating the pregnancy.

3.   But Tuesday, Martz suggested his results were misinterpreted by Rieders.

4.   In general, those who argue against use of the technology say that labs sometimes mishandle the material or misinterpret the results.

5.   The company later said it had misinterpreted the results of those studies.

6.   The researchers found that nearly one-third of the physicians who referred these patients for testing misinterpreted the results.

7.   Those who oppose DNA in the courtroom say it gives jurors the impression of absolute proof, even though labs sometimes mishandle the material or misinterpret the results.