Al and Kay Guy were cross examined in succession, neither of them spared any weapon in Peter Lennon's armoury. Al Guy said he had 18 years of experience with dope testing, but conceded that he had not undergone any of the five stages of training outlined in an International Doping Tests and Management document.

He gave an almost minute-by-minute account of all that transpired when the Guys were in the de Bruins's house on the morning of January 10th. Afterwards they consulted each other as to whether they had both smelled whiskey. They had, so they included mention of this in their mission summary.

The urine sample was kept in their fridge for the weekend following previous problems with deliveries to Barcelona at weekends. It was sent by courier on Monday morning.

How long was Michelle de Bruin out of the couple's sight? Four to six minutes, conservatively.

When did the odour arise and did it abate? After the second tranche of urine. It seemed to abate when the canister was sealed.

Why had they not challenged the swimmer?

Neither tester had been sure till they consulted afterwards what they had smelled. There was long argument over an omission or alteration on the doping control form. Top copies had the time at which the test finished written on it. The two bottom copies retained by the athlete did not. Al Guy could give no explanation he was sure of but felt that it was likely he has detached the athlete's portions and then inadvertently scribbled in the time.

A video was played of Al Guy's appearance on a UTV documentary programme where he gave strong general opinions on the business of doping in sport. Two members of the judging panel shrugged.

In supplementary questions from the judging panel, Michael Beloff asked: "Did you actually smell something?"

"I very definitely did."

"It's not something that was invented afterwards?"

"Certainly not."

When Kay Guy was questioned long minutes passed as Lennon attempted to get her to state categorically whether or not she had seen Michelle de Bruin interfere with her vagina on the morning of January 10th. Kay Guy was at pains to point out that she couldn't see everything, so the swimmer might have. She refused to provide a one-word answer.

Finally coaxed by Beloff she allowed that it was her contention that de Bruin might have effected such an action but she hadn't seen it as her view was hindered by the athlete's blue fleecy top.

There was detailed discussion of the circumference of the beaker Michelle de Bruin was aiming into, the description by Kay Guy of the urine being dark and a long argument over where exactly the de Bruins situated their kitchen table.

Again the cross examination finished with a flurry of questions of when the whiskey-like odour had first become apparent and why the issue was not raised. "When you consulted with your husband was it not beholden on you to go back and confront the de Bruins?"

"No we had taken the sample. That was our mission. Time was of the essence. We wanted to facilitate Michelle getting to the airport. We put it in the report."

And again Michael Beloff inquired was the report of the smell an invention. No, said Kay Guy and minutes later it was over.