“Good morning, Mr. Collier,” said Gray. “Can I confirm that you appear on this occasion at your own request and not as a witness for the prosecution?”

Sebastian couldn’t help noticing that Mr. Gray had put aside his earlier adversarial manner with this witness in favor of a more conciliatory tone.

“That is correct, sir.”

“And why do you wish to reappear?”

“I feared that if I didn’t, a grave injustice might be done.”

Once again, loud chattering broke out in the court. Mr. Gray made no attempt to continue until silence prevailed.

“Perhaps you would care to elaborate, Mr. Collier.”

“On Friday evening I had a call from a senior colleague in Frankfurt to brief me on a recent case in that city, which he felt I should know about. In the course of that conversation I discovered the reason Mrs. Aisha Obgabo, the stewardess on flight 207, had only been able to present written evidence to this court.”

“And what was the reason?” asked Mr. Gray.

“She’s in jail, serving a six-year sentence for a Class A drug offense.”

This time the judge made no attempt to quell the outburst of chattering caused by Collier’s revelation.

“And why should that have any bearing on this case?” asked Mr. Gray, once order had been restored.

“It seems that a few weeks after Bishara’s arrest, Mrs. Obgabo was arrested for being in possession of two ounces of marijuana.”

“Is marijuana considered a Class A drug in Germany?” asked the judge incredulously.

“No, my lord. For that offense, the judge gave Mrs. Obgabo a six-month suspended sentence and ordered that she be deported back to Nigeria.”

“Then why wasn’t she?” demanded the judge.

“Because during the trial it came to light that Mrs. Obgabo had been having an affair with the captain of the aircraft on which she was a stewardess. If she had been sent back to Nigeria, my lord, she would have been arrested for adultery and, if found guilty, the punishment in that country is death by stoning. So at the end of the trial, when the judge asked her if she wished for any other offenses to be taken into consideration before he passed sentence, she admitted to being paid a large sum of money to place thirteen ounces of heroin in the bag of a first-class passenger on a Nigeria Airways flight from Lagos to London. Mrs. Obgabo couldn’t recall the name of the passenger, but she did remember that the bag she placed the heroin in was embossed in gold with the initials HB. For this offense, the judge sentenced Mrs. Obgabo to six years in prison, which her lawyer assured her was more than enough time for her to apply for asylum as a political refugee.”