Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Digital Barriers Plc Ord

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

X

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to the notification obligation:

NewSmith Capital Partners LLP "NSCP LLP"

NewSmith Asset Management LLP "NSAM LLP"

4. Full name of shareholder(s) (if different from 3.):

Various - no individual Shareholder holds more than 3% of the shares in issue

5. Date of the transaction and date on which the threshold is crossed or reached:

4th March 2010

6. Date on which issuer notified:

4th March 2010

7. Threshold(s) that is/are crossed or reached:

>5%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares

if possible using the ISIN CODE

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of Shares

Number of Voting Rights

Number of shares

Number of voting rights

% of voting rights

Direct

Direct

Indirect

Direct

Indirect

GB00B627R8786

nil

nil

1,340,000

1,340,000

5.41%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/ Conversion Period

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date

Exercise/ Conversion period

Number of voting rights instrument refers to

% of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

1,340,000

5.41%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable:

 NSCP LLP is the parent undertaking of NSAM LLP

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

NSAM LLP has a notifiable interest on the basis that it is the investment manager of a number of funds and managed accounts. None of the underlying discretionary accounts hold more than 3% of the outstanding shares in issue.

14. Contact name:

Ian Coombey

15. Contact telephone number:

020 7518 3732