鵝溪警察使用私人DNA測試，以更快地解決犯罪問題
發布:二月 21, 2012 7:59 美東時間上午更新:二月 21, 2012 9:29 美東時間上午
當地警察部門是國家的等待遊戲打累了，已經發現的另一種方式來破案, 用自己的預算資金法醫學.
案發現場是第一聯邦銀行在聖. 詹姆斯鵝溪大道, 5月被劫 2011.
在監控錄像, 一個人符合顯示櫃員注意以交出錢. 像這樣的事情發生這麼快, 但往往需要幾個月的警務工作. 法醫證據, 的DNA, 可以加快進程.
“這是一個輝煌的科學,” 上尉說. Dave Soderberg with the Goose Creek Police Department. “And it’s very exact.”
Soderberg and his team take sealed packets from their evidence room, headed not to the SLED lab in Columbia, but instead to Intelligenetics, a private accredited lab in Hilton Head Island. Goose Creek police pay for this testing and get test results back in days.
While the SLED lab is free, the wait time can be eight to 10 months, time Soderberg says the bad guys are out there committing more crimes.
For the past year, the Goose Creek Police Department has funded its own forensics. In the First Federal Bank case, police had an arrest warrant six days after the suspect leaned on the bank counter.
“When he did that he left some of his DNA where his arms made contact with the counter top he left some of his DNA,” said Dr. Daniel Dremers, director of Intelligenetics.
So how do police know who left the DNA on the counter? The suspect wasn’t the only person at the bank counter. The man in front of the alleged suspect also left his DNA on the counter. Crime scene investigators say that in this particular case, when the robber leans in to show his message to the teller, he is taking away some of the first man’s DNA and leaving a lot more of his behind. DNA samples will be a mixture, but most will be from the last man there.
In this case, police got more DNA evidence from the suspect’s sunglasses, which were found outside the bank.
DNA can’t been seen by the naked eye, but a good crime scene investigator can collect thousands of microscopic human cells. It only takes 15 to 20 to make a solid case.
“The DNA that we’re interested in is on that swab,” Demers said.
德默斯’ job is to analyze the cells people leave behind.
“It could be a handgun and there may be more than one person that’s handled the gun and for some reason they think one person might be on the trigger and somebody else be on the magazine within the gun,” Demers said.
The DNA is a person’s blueprint and is unique to that individual.
“(In this case) it matched our suspect here perfectly,” Soderberg said.
Fingerprints are also unique to us. Before DNA testing, police were frustrated when prints were smeared, but that isn’t the case anymore.
“Now we know we can wipe those, swab those areas and we can get that DNA,” Soderberg said.
Not every Goose Creek crime will get this treatment. The department has to decide which cases will get the most bang for the taxpayer’s buck. Sodoerberg believes private DNA testing saves money in the long run by getting criminals off the streets quickly and fingering the right suspect.
“It makes sure proof positive that the guilty are guilty and the innocent are innocent which is very important to us,” Soderberg said.
The Hilton Head lab has a regional database called “Rodis,” which identified a suspect in another Goose Creek case. Police went to the man’s house and found a second suspect, the gun used in the crime and stolen goods.
Last year, the department paid $8,000 for DNA analysis.
Copyright WCSC 2012. All rights reserved.
