1.   Customs officers use specially trained dogs for drug searches.

2.   Customs officers use specially trained dogs to search for drugs.

3.   One night he trotted across the hearth and proceeded to do on the video recorder what trained dogs do outside -- usually on trees!

4.   Authorities appeared to be surveying the property and at least one trained dog roamed the site.

5.   A dozen specially trained dogs arrived on Thursday from Switzerland to help in the search.

6.   A team of divers and trained dogs continued a search Tuesday of the river beds and shoreline.

7.   A trained dog thoroughly knows why he is being corrected.

8.   By midmorning police were back in Grain Valley, searching now in greater numbers, walking the fields and the woods with specially trained dogs.

9.   Children run around the lot with the trained dogs while the men smoke and talk about jobs down the road.

10.   Currently, specially trained dogs can sniff those small amounts, and hand-held wands or treated cloths wiped across a suspect surface can also isolate them.