A series of six crime intelligence reports in which convicted drug trafficker Glenn Agliotti features are missing, a witness told the High Court in Johannesburg in the corruption trial of former police chief Jackie Selebi on Thursday.

Senior crime intelligence official Mark Henkel said files from "Operation Chaser", which contained reports on Agliotti and in which Agliotti was mentioned, had gone missing.

"As far as I am concerned, those files are missing from my environment," said Henkel.

He said the files were booked out of his office by a Captain Tema on April 21 2006.

The court heard that when Henkel tried to locate the files in February or March 2009, he could not find them.

Henkel called Tema and the commander he worked under and asked them to account for the files.

"They were at a loss for words. I told them to look for the files. They are my files."

Henkel said eventually "scraps of paper" were returned to him.

"Up to today they have not returned those files to me. I have no idea where those files are.

Even a search "high and low" in his division's files had rendered no results.

At one stage, he considered launching a counter intelligence investigation into the matter, but did not proceed with this idea.

One of the documents in the file was a 2004 letter from the United Kingdom customs office asking for information about Agliotti, described as "a well known drug-trafficker in the UK".

In 2006, Agliotti was arrested in a drug bust in Alberton. He was convicted on drug trafficking charges and reached an agreement with the State to testify in the Selebi matter.

Agliotti testified previously that in July 2006, Selebi showed him a report from the UK customs office.

"He [Selebi] wanted to make me aware of the fact that the authorities in the UK were monitoring my movements and he told me so.

"I said to him that I had nothing to worry about. It didn't concern me. He [Selebi] just said that I was being monitored by the authorities... in the UK and I asked him for a copy of the document and he said that I could not have a copy of the document. He then departed," Agliotti testified.

The UK report detailed Agliotti's trips to London, his contact details and allegations of the transportation of drugs.

On Thursday, defence lawyer Jaap Cilliers told the court: "The accused denies that he ever had access to these UK reports."

Another crime intelligence official Willem Johan Els took the stand briefly and told the court he received the letter from the UK officials about Agliotti and passed it on to Henkel and another police superintendent.

Selebi is being tried on a count of corruption and another of defeating the ends of justice in connection with at least R1.2-million he allegedly received from Agliotti and others in return for favours.