EXHIBIT 5

[LETTERHEAD OF BLANK ROME LLP]

August 12, 2005

Ionatron, Inc.
3590 East Columbia Street
Tucson, Arizona 85714

Gentlemen:

You have requested our opinion with respect to the offering by you, Ionatron,
Inc., a Delaware corporation (the "Company"), pursuant to a Registration
Statement on Form S-8 (the "Registration Statement") to be filed under the
Securities Act of 1933, as amended (the "Act"), of up to 225,000 shares of the
Company's common stock (the "non-Plan Shares") issuable upon exercise of
non-plan options ("Non-Plan Stock Options") granted to certain directors of the
Company and (ii) 5,000,000 shares of the Company's common stock (the "Incentive
Plan Shares") issuable upon the exercise of options or other stock-based awards
(collectively, the "Plan Awards") granted or to be granted under the Company's
2004 Stock Incentive Plan (the "Incentive Plan").

We have examined and relied upon originals, or copies certified or otherwise
identified to our satisfaction, of such documents and corporate and public
records as we deemed necessary as a basis for the opinion hereinafter expressed.
With respect to such examination, we have assumed the genuineness of all
signatures appearing on all documents presented to us as originals, and the
conformity to the originals of all documents presented to us as conformed or
reproduced copies. Where factual matters relevant to such opinion were not
independently established, we have relied upon representations of executive
officers of the Company.

Based upon the foregoing, it is our opinion that: (i) the Non-Plan Shares, when
sold, paid for and issued as contemplated by the terms of the Non-Plan Stock
Options, will be validly issued, fully paid and nonassessable and (ii) the
Incentive Plan Shares, when paid for and issued as contemplated by the Incentive
Plan and the Plan Awards, will be validly issued, fully paid and nonassessable.

We hereby consent to the use of this opinion as Exhibit 5 to the Registration
Statement, and to the use of our name as your counsel in connection with the
Registration Statement and in the Prospectus forming a part thereof. In giving
this consent, we do not thereby concede that we come within the categories of
persons whose consent is required by the Act or the General Rules and
Regulations promulgated thereunder.

                                 Very truly yours,
                                 /s/ Blank Rome LLP
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                                 BLANK ROME LLP