Directorate Change

Spirent PLC
25 February 2004


                                                          829 - 25 February 2004

                                  Spirent PLC

                 Nicholas Brookes to retire as chief executive

Spirent plc (LSE: SPT; NYSE: SPM), a leading communications technology company,
today announced that Nicholas Brookes has informed the Board of his intention to
retire as Chief Executive of the Company. His retirement is due to become
effective at the end of June 2004 at which time he will step down from the
Board. A formal process to find a successor is under way.

Nicholas Brookes joined the Company in 1995 as Deputy Chief Executive, becoming
Chief Executive in 1996.

Commenting, Nicholas Brookes, Chief Executive, said:

'My time at Spirent has been a truly fulfilling experience. Since joining the
Company in 1995 I have worked to develop Spirent from a broadly based
electronics group into a focused high technology company. Spirent now has three
global operating groups with leading positions in their served markets. The
Company has a strong management team, a highly experienced Board and is in good
shape to move forward so I believe now is the right time to hand over to a
successor to enable Spirent to continue along its strategic path.'

Commenting, John Weston, Chairman, said:

'During Nick's tenure as Chief Executive Spirent has been transformed into a
leading technology group and has weathered exceptionally difficult conditions in
the telecoms market, emerging with a sound financial position and good
prospects, as the preliminary results for the year to 31 December 2003 announced
today demonstrate. The Board would like to take this opportunity to thank Nick
for his outstanding achievements and wish him all the best for the future.'

                                    - ends -

Enquiries

Nicholas Brookes, Chief Executive     Spirent plc      [phone]
Eric Hutchinson, Finance Director

Investor Relations

Catherine Nash                        Spirent plc      [phone]

Media

Jon Coles/Rupert Young                Brunswick        [phone]



About Spirent

Spirent is a leading communications technology company focused on delivering
innovative systems and services to meet the needs of customers worldwide. We are
a global provider of performance analysis and service assurance solutions that
enable the development and deployment of next-generation networking technologies
such as broadband services, Internet telephony, 3G wireless and web applications
and security testing. Our Network Products business is a developer and
manufacturer of innovative solutions for fastening, identification, protection
and connectivity in electrical and communications networks marketed under the
global brand HellermannTyton. The Systems group comprises PG Drives Technology,
which develops power control systems for specialist electrical vehicles in the
mobility and industrial markets, and an aerospace business that provides
ground-based logistics support software systems for the aviation market. Further
information about Spirent plc can be found at www.spirent.com

Spirent Ordinary shares are traded on the London Stock Exchange (ticker: SPT)
and on the New York Stock Exchange (ticker: SPM; CUSIP number: 84856M209) in the
form of American Depositary Shares (ADS), represented by American Depositary
Receipts, with one ADS representing four Ordinary shares.

Spirent and the Spirent logo are registered trademarks of Spirent plc. All
rights reserved.

This press release may contain forward-looking statements that are based on
current expectations or beliefs, as well as assumptions about future events. By
their nature, forward-looking statements are inherently predictive, speculative
and involve risk and uncertainty because they relate to events and depend on
circumstances that will occur in the future. You should not place undue reliance
on these forward-looking statements, which are not a guarantee of future
performance and are subject to factors that could cause our actual results to
differ materially from those expressed or implied by these statements. These
risks include the risks described from time to time in Spirent plc's Securities
and Exchange Commission periodic reports and filings. The Company undertakes no
obligation to update any forward-looking statements contained in this press
release, whether as a result of new information, future events or otherwise.



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