Raleigh police Capt. D.S. Ozerman said DNA testing is often used in crime investigations such as assault, homicide and identifying missing persons.
DNA evidence offers police a new means of collecting information and can make it more difficult for criminals to get away with crimes, he said.
"I think it gives police investigators a new area to observe and presents problems for criminals who leave traces of evidence," Ozerman said.
But civil rights advocates say they are concerned about how police will collect and utilize the evidence.
Ozerman also said he believes that as DNA technology expands, police officials will work even more to incorporate the evidence into their investigations.
"I think you're gonna see DNA procedures grow pretty rapidly in the next five or so years," Ozerman said.
He also said he supports having a DNA database so police investigators could easily locate potential suspects. "I think it would be an excellent tool to have a database of all DNA."
Sen. Tony Rand, D-Cumberland, has proposed a bill in the N.C. General Assembly that would require suspects to give DNA samples.
Ozerman said DNA evidence should be collected in all police investigations -- not only for felony cases. "I am not opposed to collecting DNA samples from people who commit minor offenses because history has shown that people gradually progress to more heinous crimes," he said.