Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0104
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
  Halfmoon Bay Capital Ltd
 2. Date of Event Requiring Statement (Month/Day/Year)
03/28/2008		 3. Issuer Name and Ticker or Trading Symbol
Electronic Sensor Technology, Inc [ESNR]
(Last)
(First)
(Middle)
TRIDENT CHAMBERS, P.O. BOX 146, 		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

ROAD TOWN TORTOLA, D8 00000		 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 86,419,753 (3)
D (1)
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Convertible Debenture (right to buy) (2) 03/28/2008 03/28/2013 Common Stock 41,152,263 (3) $ 0.0486 D (1)  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Halfmoon Bay Capital Ltd
TRIDENT CHAMBERS, P.O. BOX 146
ROAD TOWN TORTOLA, D8 00000		     X    
Wan Hamzah Wan Azmi
SUITE 10.3, WEST WING, ROHAS PERKASA
9 JALAN PERAK
KUALA LUMPUR, N8 50450		     X    

Signatures

/s/ Philip Yee, Attorney-in-Fact for Wan Azmi Wan Hamzah 04/08/2008
**Signature of Reporting Person Date
/s/ Philip Yee, Attorney-in-Fact for Halfmoon Bay Capital Ltd 04/08/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The shares of common stock and debenture are owned directly by Halfmoon Bay Capital Ltd and indirectly by Wan Azmi Wan Hamzah, who is both a shareholder and a director of Halfmoon Bay Capital Ltd. Halfmoon Bay Capital Ltd has three shareholders, who are Wan Azmi Hamzah, Nik Anida Bte Nik Manshor and Wan Afzal Bin Wan Azmi and two directors, who are Wan Azmi Wan Hamzah and Nik Anida Bte Nik Manshor.
(2) $2,000,000 of a 9% Convertible Debenture
(3) Wan Afzal Bin Wan Azmi expressly disclaims beneficial ownership of these securities as Wan Afzal Bin Wan Azmi is not a director of Halfmoon Bay Capital Ltd and the Board of Directors of Halfmoon Bay Capital Ltd makes the ultimate voting and investment decisions with respect to these shares.
 
Remarks:
Exhibit List:
Exhibit 24.1 - Power of Attorney for Halfmoon Bay Capital Ltd
Exhibit 24.2 - Power of Attorney for Wan Azmi Wan Hamzah

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.