1.   How did Oscar discover heroin?

2.   Air force officials said they discovered the heroin after an anonymous phone tip to their intelligence unit.

3.   On Friday, Colombian police discovered heroin in his personal jet, forcing Samper to fly to New York aboard a commercial airliner.

4.   The heroin was discovered last Thursday but the ministry announced the catch only Monday.

5.   Tudor could not say exactly when customs officers discovered the heroin in the back of a truck traveling from Bucharest.

6.   After the flight, the aircraft remained parked in a hangar at the military airport until the heroin was discovered.

7.   The heroin was discovered on a truck in the Azadpur area of Delhi following a tip-off.