SIGNS have been put up in Southall warning van drivers and builders about penalties for employing illegal workers.
The initiative by Southall Police is part of a crackdown on hot spots for illegal immigrants, carried out with the help of the borough council and the UK Border Agency.
Kings Street car park and Norwood Road in Southall have been identified as hot spots and will be hit by a number of joint operations, scheduled to run over the next few months.
Pensioner Bill Denbrough, who lives near Norwood Road, said: "This part of Southall has got a massive problem with illegal workers. The worst thing is that these are people looking for a better way of life but they end up having the most horrendous experience. I can only hope this crackdown does some good."
Sergeant Richard Moelwyn-Hughes, of Ealing Police, said: "This has been a problem in the area for some time and while some tactics work and others fail, we are committed to making the area safer for everyone.
"With all the different partners working together we hope to make a difference. Some of these illegal immigrants have spent lots of money getting over here only to work in a menial job earning a pittance and be abused by unscrupulous employees.
"We are targeting those employees with the threat of prosecution."
Anyone who has any information should contact Southall Green Safer Neighbourhoods Team on 0208 721 2047.
* A man arrested in a raid in Southall last week will appear in court charged with two counts of fraud.
Sukhjiwan Singh Burham, 36, who lives in Slough, was charged with two counts of possession of improperly-obtained identification documents.
He was arrested along with eight other Indian nationals after the UK Border Agency swooped on KMB Caterers in Balfour Road, Southall last Thursday.
He is due to appear at Reading Crown Court on April 15th. A spokesman for the UK Border Agency said more charges are expected to follow.