Exhibit
      4.8

     

    PROMISSORY
      NOTE


     

    
      
        	Date: December
                21, 2007	
                US
                  $250,000

              


      

    

     

    This
      Promissory Note (this “Note”)
      is
      issued pursuant to that certain Letter of Intent dated September 19, 2007
      entered into by and among Bonds.com Holdings, Inc. (the “Maker”) and Keating
      Investments, LLC (the “Holder”).
      

     

    FOR
      VALUE RECEIVED,
      the
      Maker promises to pay to the Holder, at the offices of the Maker located at
      1515
      S. Federal Highway, Boca Raton FL 33432, or such other place as the Maker and
      the Holder shall mutually agree, the principal amount of Two Hundred and Fifty
      Thousand
      Dollars ($250,000) (the “Principal
      Amount”).

     

    1.
       Principal.
      The
      Principal Amount shall be payable in lawful money of the United States on the
      earlier to occur of: (a) June 21, 2008 and (b) the date on which the Company
      consummates a public offering of equity securities of the Maker with gross
      proceeds to the Maker equal to or in excess of $5,000,000 (as applicable, the
      “Maturity
      Date”)
      and
      all other terms hereof, with interest on such amount at the rate calculated
      in
      the manner and payable at the times specified in this Note. 

     

    2.
       Interest.
      The
      Principal Amount remaining from time to time unpaid and outstanding shall bear
      interest (unless otherwise provided in Section 2 above) at 10% per annum,
      compounded semi-annually, and shall accrue and be payable upon Maturity Date
      of
      the Note. 

     

    4.
       Default.
      In the
      event that the outstanding Principal Amount and accumulated interest is not
      paid
      in full on or prior to the Maturity Date, notwithstanding the provisions of
      Section 2, the interest rate shall be increased following such Maturity Date
      to
      the rate of 16% per annum (or the maximum permitted under applicable law, if
      less). 

     

    5. Payment
      in Equity.
      Notwithstanding anything contained herein to the contrary, the Maker shall
      have
      a right, at its election to pay all outstanding Principal Amounts and
      accumulated interest in shares of Common Stock. The conversion price shall
      be
      equal to 75% of the then current market price of such Common Stock.

     

    6. Prepayment.
      The
      Maker shall have the right and privilege of prepaying the whole or any portion
      of the principal amount of this Note at any time or times without notice,
      penalty or bonus.

     

    5.
       Miscellaneous.
      

     

    (a)
      The
      failure of either party to exercise any of its rights hereunder in any
      particular instance shall not constitute a waiver of the same or any other
      right
      in that or any subsequent instance in connection with the delivery, acceptance,
      performance or enforcement of this Note;

     

    (b)
      This
      Note shall be binding on the successors and assigns of Maker. 

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

     

    (c)
      This
      Note is not negotiable and may not be transferred by Maker without Holder’s
      express prior written consent. 

     

    (d)
      This
      Note and the rights and obligations of Maker hereunder shall be governed by
      and
      construed in accordance with the laws of the State of Florida applicable to
      agreements made and to be performed in Florida without regard to principles
      of
      conflicts of law; and

     

    (e)
      This
      Note may not be modified or amended except in writing signed by the Maker and
      the Holder.

     

    (f)
      The
      parties waive presentment, demand, protest and notices of any kind in connection
      with the enforcement of this Note.

     

    (g)
      The
      rights and remedies herein reserved to any party shall be cumulative and in
      addition to any other or further rights and remedies available at law or in
      equity. No delay or omission on the part of the holder in exercising any right
      hereunder shall operate as a waiver of such right or of any other right of
      such
      holder. The waiver by any party hereto of any breach of any provision of this
      Note shall not be deemed to be a waiver of the breach of any other provision
      or
      any subsequent breach of the same provision.

     

    (h)
      In
      case any provision contained herein (or part thereof) shall for any reason
      be
      held to be invalid, illegal, or unenforceable in any respect, such invalidity,
      illegality, or other unenforceability shall not affect any other provision
      (or
      the remaining part of the affected provision) hereof, but this Note shall be
      construed as if such invalid, illegal, or unenforceable provision (or part
      thereof) had never been contained herein, but only to the extent that such
      provision is invalid, illegal or unenforceable.

     

    
      
         

      

      
        2

        
          

        

      

      
         

      

    

     

    IN
      WITNESS WHEREOF Maker has caused this Note to be executed as an instrument
      under
      seal by its duly authorized officers.

     

    
      	 	 	 
	 	
              Bonds.com
                Holdings, Inc.

            
	 
 	 
 	 
 
	
            	
            	
              /s/
                John Barry IV

            
	 	
              

              By:
                John Barry IV

              Title:
                CEO

            


    

     

    
      
         

      

      
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