SECURITIES AND EXCHANGE COMMISSION
                         WASHINGTON, D.C.  20549
                                    
                            ________________
                                    
                              SCHEDULE 13G
                             (Rule 13d-102)

         INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
         TO RULES 13D-1(b) AND (c) AND AMENDMENTS THERETO FILED
                          PURSUANT TO 13d-2(b)
                         (Amendment No. _______)
                                    

                         DETECTION SYSTEMS, INC.
- ------------------------------------------------------------------------
                            (Name of Issuer)
                                    

                 Common Stock, par value $0.05 per share
- ------------------------------------------------------------------------
                     (Title of Class of Securities)

                               250644 10 1
- ------------------------------------------------------------------------
                             (CUSIP Number)
     
     
     
      (1)The remainder of this cover page shall be filled out for a
reporting person's initial filing on this form with respect to the
subject class of securities, and for any subsequent amendment containing
information which would alter the disclosures provided in a prior cover
page.

     The information required in the remainder of this cover page shall
not be deemed to be "filed" for the purpose of Section 18 of the
Securities Exchange Act of 1934 ("Act") or otherwise subject to the
liabilities of that section of the Act but shall be subject to all other
provisions of the Act (however, see the notes).
     
                                    
                            Page 1 of 4 pages
                    (Continued on the following page)

                                    
CUSIP NO. 250644 10 1        Schedule 13G           Page 2 of 4 Pages

1.  Names of Reporting Persons.
    S.S. or I.R.S. Identification Nos. of Above Persons:
    
    David B. Lederer, S.S.# ###-##-####
2.  Check the Appropriate Box if a Member of a Group* (a) [  ]
                                                      (b) [  ]
3.  SEC Use Only
    
4.  Citizenship or Place of Organization:
    
    United States of America

 Number of      5.  Sole Voting Power            203,537
 shares
 beneficially   6.  Shared Voting Power          none
 owned by
 each           7.  Sole Dispositive Power       203,537
 reporting
 person with    8.  Shared Dispositive Power     none
      
9.  Aggregate amount beneficially owned by each reporting person
    
    321,002  (Includes 117,465 shares which may be acquired by Mr.
    Lederer upon retirement pursuant to the Company's Deferred
    Compensation and Deferred Stock Bonus Plans.)
    
10. Check box if the aggregate amount in row (9) excludes
    certain shares*     [  ]
    
11. Percent of class represented by amount in row (9)
    
    5.16%

12. Type of reporting person
    
    IN

Item 1(a).  Name of Issuer:  Detection Systems, Inc.
          
Item 1(b).  Address of Issuer's Principal Executive Offices:

            130 Perinton Parkway, Fairport, NY 14450

Item 2(a).  Name of Person Filing:  David B. Lederer


CUSIP NO. 250644 10 1        Schedule 13G           Page 3 of 4 Pages

Item 2(b).  Address of Principal Business Office or, if None, Residence:

            130 Perinton Parkway, Fairport, NY 14450
          
Item 2(c).  Citizenship:  United States of America

Item 2(d).  Title of Class of Securities:  Common Stock, par value $0.05
            per share

Item 2(e).  CUSIP Number:  250644 10 1

Item 3.     If This Statement Is Filed Pursuant to Rules 13d-1(b), or 13d-
            2(b), check whether the Person Filing is a

(a) [ ] Broker or Dealer registered under Section 15 of the Act.
(b) [ ] Bank as defined in section 3(a)(6) of the Act.
(c) [ ] Insurance company as defined in section 3(a)(19) of the Act.
(d) [ ] Investment Company registered under section 8 of the Investment
        Company Act.
(e) [ ] Investment  Adviser  registered  under  section  203  of the
        Investment Advisers Act of 1940.
(f) [ ] Employee  Benefit  Plan,  Pension  Fund which is subject to the
        provisions of the Employee  Retirement  Income Security Act of
        1974 or Endowment fund; see Rule 13d-1(b)(1)(ii)(H).
(g) [ ] Parent Holding Company, in accordance with Rule 13d-1(b)(ii)(G)
        (Note: See Item 7).
(h) [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(H).

Item 4.  Ownership
(a) Amount Beneficially Owned (as of December 31, 1997):

    321,002 (Includes 117,465 shares which may be acquired by Mr. Lederer
    upon retirement pursuant to the Company's Deferred Compensation and
    Deferred Stock Bonus Plans.)

(b) Percent of Class (as of December 31, 1997):  5.16%

(c) Number of Shares as to which such person has:

     (i) sole power to vote or to direct the vote: 203,537

     (ii) shared power to vote or to direct the vote:   0

     (iii) sole power to dispose or to direct the disposition of: 203,537


CUSIP NO. 250644 10 1        Schedule 13G           Page 4 of 4 Pages

     (iv) shared power to dispose or to direct the disposition of:  0

Item 5.  Ownership of Five Percent or Less of a Class

If this statement is being filed to report the fact that as of the date
hereof the reporting  person has ceased to be the beneficial owner of
more than five percent of the class of securities, check the following
[ ].

Item 6.  Ownership of More Than Five Percent on Behalf of Another Person.
N/A

Item 7.  Identification  and Classification of the Subsidiary Which
Acquired the Security Being Reported on by the Parent Holding Company.
N/A

Item 8.  Identification and Classification of Members of the Group.  N/A

Item 9.  Notice of Dissolution of Group.  N/A

Item 10.  Certification

By  signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired in the ordinary course of
business and were not acquired for the purpose of and do not have the
effect of changing or influencing  the control of the issuer of such
securities and were not acquired in connection with or as a participant
in any transaction having such purposes or effect.

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true,
complete and correct.

                         2/9/98
                         (Date)

                         /s/ David B. Lederer
                         (Signature)


                         David B. Lederer, Executive Vice President
                         (Name/Title)