GANGS of youths will be hounded out of trouble-spots with blasts of high-pitched sound only young people can hear.
Yobs who congregate in south Liverpool will be bombarded with annoying noise only audible to people under the age of 25.
Police hope the initiative will persuade gangs of youths to move on rather than hang around the area causing trouble and intimidating locals.
Speke is the first area of Merseyside to get the Mosquito equipment, which resembles a security light and emits an ultra-sonic sound inaudible to adults.
Only teenagers and children within 20m can hear it.
The noise becomes more uncomfortable the longer they stay within its range but does not cause them harm.
And although dogs can detect sounds of a higher pitch than humans, experts believe the equipment will not cause local pets any distress.
Author James Glover Publication Liverpool Echo Date 20 April 2006 Linkwww.icliverpool.co.uk
