1. There are a couple of additional tools to help you sniff out proper images to use.

2. Any large social network has to pass the sniff test by college students before it goes anywhere else.

3. Investigators will look at surveillance recordings from surrounding buildings and will use dogs that can sniff fire accelerants.

4. Officials responded with software designed to sniff out malicious programs and raise alarms about intruders.

5. Give it one quick sniff and it smells more like a gas from the other end.

6. Many other before and after images are, however, still there for the world to admire or sniff at.

7. The dog sniff revealed a pipe that is mostly associated with meth smoking, according to the paper.