I don't know specifically about Cobb County, but in Gwinnett County when I have seen the judge order an ETG test, they get it back in about 20 minutes. The judge always says that the test can detect alcohol for up to 80 hours back.
cott Patrick SemrauSpeeding / Traffic Ticket LawyerMarietta, GA ·
It can be instantly. The Drug Court Lab routinely produces results while the Judge waits. Judge Bodiford, for instance, Orders defendants to go and take a test and come back. The results are brought to the judge within minutes.