EXHIBIT 99.6

We hereby consent to the use of our opinion letter to the Board of Directors of
Datron Systems Incorporated included as Annex C to the proxy
statement-prospectus which forms a part of the registration statement on Form
S-4 relating to the proposed exchange offer and merger provided for in the
Agreement and Plan of Reorganization dated as of June 24, 2001 among Datron
Systems Incorporated, The Titan Corporation and Gem Acquisition Corp, and to the
references to such opinion therein.

In giving such consent, we do not admit that we come within the category of
persons whose consent is required under Section 7 of the Securities Act of 1933,
as amended, or the rules and regulations of the Securities and Exchange
Commission thereunder, nor do we hereby admit that we are experts with respect
to any part of such registration statement within the meaning of the term
"experts" as used in the Securities Act of 1933, as amended, or the rules and
regulations of the Securities and Exchange Commission thereunder.

Philpott, Ball & Werner


By: /s/ GEORGE M. BALL
        -------------------------
        George M. Ball
        Chairman

July 25, 2001