A man in uniform tries to find something with the help of a sniffing dog .
Chances are about even that a man tries to search for drugs or explosives with the help of his dog .
Chances are about even that a man tries to search for drugs or explosives with the help of his dog .
It is impossible that a man tries to search for drugs or explosives with the help of his dog .
A man tries to search for drugs or explosives with the help of his dog .