The judge dismissed the preliminary points raised by BLF and said he would give reasons at the end of the application by Sanef and the journalists.
"I am satisfied that a case of urgency has been made‚" Van der Westhuizen said.
Business Day editor Tim Cohen was assaulted as he tried to take a picture of BLF supporters gathered outside Tiso Blackstar editor-at-large Peter Bruce's home in Johannesburg.
Bruce had written an article where a website had.secretly taken photographs relating to his private life‚ indicating that he had been spied on.
There had been threats on social media that there would be more such visits to the homes of other journalists.
These threats forced Sanef and the journalists to launch the urgent application.
The court will pass judgment on Friday.