from the New Paper. note the 2 points under the title. 
(pls do not quote entire article in reply)
100kg of jet fuel additive
STOLEN
Theft took place despite...
[*] Armed guards
[*] Anti-vehicle barriers
By Andre Yeo and Crystal Chan, 30 December 2006
HOW did this happen?
That is the question on the minds of security experts after the
theft of a jet fuel additive on the heavily-guarded Jurong
Island.
Thieves had made off with 100kg of Stadis 450, a jet fuel additive.
Jurong Island is home to 88 leading petrochemical companies like
DuPont and Shell.
The New Paper understands the additive was left in six sealed pails
which later went missing. The Philippine Daily Inquirer reported
the additive as belonging to OilTanking Singapore.
The company couldn't be contacted at press time.
The pails had been left in an open storage area on 29 Nov and were
discovered missing by workers of the company on 4 Dec.
The stolen fuel additive is worth $6,800, said a Singapore police
spokesman in a statement issued last night.
Police received a report on 6 Dec.
Police investigations into the theft are in progress.
Stadis 450 is added to jet fuel to enhance electrical conductivity.
It is classified as a flammable liquid and hazardous
material.
The incident was serious enough for Singapore authorities to alert
a bomb data centre in the Philippines, reported the Philippine
Daily Inquirer.
Since the 11 Sep terrorist attacks in the US, security on Jurong
Island has been stepped up and it has also been gazetted a
Protected Area. Armed soldiers and police officers are involved in
its security.
In November 2003, the chemical hub opened a new security checkpoint
featuring x-ray scanners to detect explosives and weapons, as well
as three-tier vehicle barriers to bar intrusions.
Visitors must also exchange their identity cards for a pass and all
incoming vehicles are searched before being allowed entry.
The Singapore Armed Forces works closely with the Police Coast
Guard, JTC Corporation and the resident commercial companies to
protect Jurong Island.
Given these layers of security, the fuel theft was perplexing to
ex-cop and private investigator Lionel De Souza.
He asked: 'Is it a chink in the security or possible collaboration
on the part of some dishonest worker on the island?'
Mr Joe Moreira, a security and explosives consultant, told The New
Paper that whoever stole the additive probably did it for the
money.
But he doubts the fuel additive will be a threat.
He said: 'Jet fuel burns very quickly in the air and you can't
sustain it for long. You need diesel to sustain the fire. So,
you'll be wasting jet fuel on a bomb.'
But he felt the incident raised security questions. Said Mr
Moreira: 'How can someone can go in past all the access controls,
and come out with stolen goods?'
But who would buy jet fuel additive from unauthorised
sources?
A source in the aviation industry said that if a syndicate is
involved, it would have ready buyers.
Said the source: 'Those who own private jets are potential
customers, especially when jet fuel prices have risen
recently.
'Big airlines wouldn't buy from the black market. They don't want
to ruin their reputations by getting involved in shady
deals.'
The source said jet fuel additives can be used in any machine
running on jet engines, such as jet skis and jetboats.
When contacted, a JTC Corporation spokesman would only say: 'We
understand that a police report has been filed and the police are
investigating the matter.'
