A man  had just settled into his seat next to the window  on the
plane when  another man sat down in the aisle seat and put his
black Labrador Retriever  in the middle seat next to the man.

The  first man looked very quizzically at the dog and  asked why
the dog was  allowed on the plane.

The second man  explained that he was from the Commonwealth Police
Drug Department  and that the dog was a sniffing dog.

His  name is Sniffer and hes the best there is. Ill  show you
once we get  airborne, when I put him to work.

The  plane took off , and once it has levelled out, the  Policeman
said, Watch  this.

He told Sniffer to  search.

Sniffer jumped down, walked along  the aisle, and finally sat very
purposefully  next to a woman for several seconds.
Sniffer  then returned to his seat and put one paw on the
policemans arm.

The  Policeman said, Good boy, and he turned to the  man and
said, That  woman is in possession of marijuana, Im making  a
note of her seat number and the authorities will apprehend her
when we land.
Gee, thats pretty good,  replied the first man.

Once again, the  Policeman sent Sniffer to search the  aisles.
The Lab sniffed about, sat down beside  a man for a few seconds,
returned  to its seat, and this time he placed two paws on  the
agents arm.
The  Policeman said, That man is carrying cocaine, so  again, Im
making a note of his seat number for  the police.

I like it ! said his seat  mate.

The Policeman then told Sniffer to  search again.

Sniffer walked up and down  the aisles for a little while, sat
down for a  moment, and then came racing back to the agent,
jumped into the middle  seat and proceeded to sh*t all over the place.

The first man was really disgusted  by this behaviour and couldnt
figure  out how or why a well-trained dog would behave  like that,
so he asked  the Policeman, Whats going on ?

The  Policeman nervously replied, Hes just found a  bomb.