Staff at a pharmaceutical company have been granted exclusion zones around their homes and workplace to keep out animal rights protesters.
Some companies using HLS research allege harassment
The Chiron Corporation says protesters want the company to stop working with Huntingdon Life Sciences (HLS).
The High Court order covers about 900 staff in Uxbridge, west London, Oxford Science Park, Speke in Liverpool and Cranford, Hounslow.
The order was granted for four weeks to give protesters time to respond.
The High Court has previously granted exclusion zones to include employees, their families and suppliers of HLS - an animal testing drug laboratory.
Protests in America
Chiron, which has its headquarters in California, has businesses in biopharmaceuticals, vaccines and blood testing.
There have already been protests in America and the court heard they have now spread to the UK.
Chiron's solicitor Tim Lawson-Cruttenden said the company's Liverpool premises had been "invaded" on 20 January.
He urged Mrs Justice Hallett to grant an order under the Protection from Harassment Act 1997, arguing protesters were trying to stop Chiron carrying out its lawful activities.
Protest group Stop Huntingdon Animal Cruelty (Shac) was not represented at the High Court on Monday.
The judge granted the order to Chiron director John Lambert, but limited it to four weeks "to see whether or not the defendants wish to respond."
She said she also recognised the company did not wish to prevent legitimate protest.