A Vale company which makes an electronic tagging device is close to securing a multi-million pound contract.
Buddi, based in Walton Street, Aylesbury, is vying with two competitors for a Ministry of Justice contract, including global firm 3M.
Since developing the idea five years ago, Sara Murray has seen the GPS device used to help the elderly, keep track of psychiatric patients and for following criminals who are prolific offenders.
Ms Murray, 43, said: “It’s a milestone year for the company. We’re down to the last three. I’m terrified but we’ve got everything that we need to win it.”
Unlike the current tagging system, which Ms Murray said was outdated, buddi enables 24 hour monitoring of prolific offenders.
When tested by Hertfordshire Police earlier this year it reported a 68% reduction in burglaries.
The £250 smart tag costs approximately £4,000 a year for each offender as opposed to £40,000 for a year in jail.
Ms Murray added:“I think people are frustrated that the taxpayers have been ripped off for so long.
“We can save the tax payer at least 50%. I think we are the low risk option, we have already developed the technology.
“It has a massive effect on crime.”
The tag is now being used by half the police forces in the UK and Wales, with officers able to simply access computers to trace offenders.
Buddi will find out whether it is selected as the preferred bidder at the end of the year, with the contract awarded in April 2013.