-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000927946-06-000096.txt : 20060607
<SEC-HEADER>0000927946-06-000096.hdr.sgml : 20060607
<ACCEPTANCE-DATETIME>20060607174759
ACCESSION NUMBER:		0000927946-06-000096
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20060605
FILED AS OF DATE:		20060607
DATE AS OF CHANGE:		20060607

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BAITINGER WILLIAM E
		CENTRAL INDEX KEY:			0001275405

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23357
		FILM NUMBER:		06892333

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		7657431023

	MAIL ADDRESS:	
		STREET 1:		700 SUGAR HILL DRIVE
		CITY:			WEST LAFAYETTE
		STATE:			IN
		ZIP:			47906

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIOANALYTICAL SYSTEMS INC
		CENTRAL INDEX KEY:			0000720154
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731]
		IRS NUMBER:				351345024
		STATE OF INCORPORATION:			IN
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		2701 KENT AVE
		CITY:			WEST LAFAYETT
		STATE:			IN
		ZIP:			47906-1382
		BUSINESS PHONE:		3174634527

	MAIL ADDRESS:	
		STREET 1:		2701 KENT AVENUE
		CITY:			WEST LAFAYETTE
		STATE:			IN
		ZIP:			47906-1382
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>baitingerform4_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-06-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000720154</issuerCik>
        <issuerName>BIOANALYTICAL SYSTEMS INC</issuerName>
        <issuerTradingSymbol>BASI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001275405</rptOwnerCik>
            <rptOwnerName>BAITINGER WILLIAM E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>700 SUGAR HILL DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WEST LAFAYETTE</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>47906</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-06-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>300</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>6.25</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>91245</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By the William Baitinger Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-06-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>53454</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By the Paula Baitinger Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-06-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3413</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The transaction reported on this Form 4 is the sale of 300 shares from the William Baitinger Trust which Mr. Baitinger owns
 indirectly.  Mr. Baitinger also owns shares indirectly through the Paula Baitinger Trust and also owns shares directly,
 which shares are being reported for purposes of reporting Mr. Baitinger's total beneficial ownership as of the date herof,
 but which were not affected by Mr. Baitingger's sale.</footnote>
    </footnotes>

    <remarks>Exhibit List
Exhibit 24 Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Lina Reeves-Kerner, attorney-in-fact</signatureName>
        <signatureDate>2006-06-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>exhibit24.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
<HTML>
<HEAD>
<TITLE>Exhibit 24</TITLE>
</HEAD>
<BODY>




<P align=right><FONT face="Times New Roman, Times, Serif" size=2><B><U>Exhibit
24</U></B></FONT></P><BR><BR><!-- MARKER FORMAT-SHEET="Head Major Center Bold" FSL="Default" -->
<H1 align=center><FONT face="Times New Roman, Times, Serif" size=2>LIMITED POWER
OF ATTORNEY FOR<BR>SECTION 16 REPORTING OBLIGATIONS</FONT></H1><BR><!-- MARKER FORMAT-SHEET="Para Indent Lv 0-TNR" FSL="Workstation" -->
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Know all by these
presents, that the undersigned hereby makes, constitutes and appoints each of
Peter T. Kissinger and Lina Reeves-Kerner, each acting individually, as the
undersigned's true and lawful attorney-in-fact, with full power and authority as
hereinafter described on behalf of and in the name, place and stead of the
undersigned to:</FONT></P>
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
prepare, execute, acknowledge, deliver and file Forms&nbsp;3, 4, and 5
(including any amendments thereto) with respect to the securities of
Bioanalytical Systems, Inc., an Indiana corporation (the "Company"), with the
United States Securities and Exchange Commission, any national securities
exchanges and the Company, as considered necessary or advisable under
Section&nbsp;16(a) of the Securities Exchange Act of 1934 and the rules and
regulations promulgated thereunder, as amended from time to time (the "Exchange
Act");</FONT></P>
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
seek or obtain, as the undersigned's representative and on the undersigned's
behalf, information on transactions in the Company's securities from any third
party, including brokers, employee benefit plan administrators and trustees, and
the undersigned hereby authorizes any such person to release any such
information to each of the undersigned's attorneys-in-fact appointed by this
Limited Power of Attorney and approves and ratifies any such release of
information; and</FONT></P>
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
perform any and all other acts which in the discretion of such attorney-in-fact
are necessary or desirable for and on behalf of the undersigned in connection
with the foregoing.</FONT></P><!-- MARKER FORMAT-SHEET="Para Indent Lv 0-TNR" FSL="Workstation" -->
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The undersigned
acknowledges that:</FONT></P>
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
this Limited Power of Attorney authorizes, but does not require, each such
attorney-in-fact to act in their discretion on information provided to such
attorney-in-fact without independent verification of such
information;</FONT></P>
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
any documents prepared and/or executed by either such attorney-in-fact on behalf
of the undersigned pursuant to this Limited Power of Attorney will be in such
form and will contain such information and disclosure as such attorney-in-fact,
in his or her discretion, deems necessary or desirable;</FONT></P>
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
neither the Company nor any of such attorneys-in-fact assumes (i) any liability
for the undersigned's responsibility to comply with the requirement of the
Exchange Act, (ii) any liability of the undersigned for any failure to comply
with such requirements, or (iii) any obligation or liability of the undersigned
for profit disgorgement under Section 16(b) of the Exchange Act; and</FONT></P>
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
this Limited Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigned's obligations under the
Exchange Act, including without limitation the reporting requirements under
Section 16 of the Exchange Act.</FONT></P><PAGE><!-- MARKER FORMAT-SHEET="Para Indent Lv 0-TNR" FSL="Workstation" -->
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The undersigned hereby
gives and grants each of the foregoing attorneys-in-fact full power and
authority to do and perform all and every act and thing whatsoever requisite,
necessary or appropriate to be done in and about the foregoing matters as fully
to all intents and purposes as the undersigned might or could do if present,
hereby ratifying all that each such attorney-in-fact of, for and on behalf of
the undersigned, shall lawfully do or cause to be done by virtue of this Limited
Power of Attorney.</FONT></P><!-- MARKER FORMAT-SHEET="Para Indent Lv 0-TNR" FSL="Default" -->
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This Limited Power of
Attorney shall remain in full force and effect until revoked by the undersigned
in a signed writing delivered to each such attorney-in-fact.</FONT></P>
<P align=justify><FONT face="Times New Roman, Times, Serif"
size=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;IN WITNESS WHEREOF, the
undersigned has caused this Limited Power of Attorney to be executed as of this
12th day of February, 2004.</FONT></P><!-- MARKER FORMAT-SHEET="Signature Block w/Company Name" FSL="Workstation" -->
<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>

  <TR vAlign=top>
    <TD width="60%"><FONT face="Times New Roman, Times, Serif"
      size=2>&nbsp;</FONT></TD>
    <TD width="40%"><FONT face="Times New Roman, Times, Serif"
      size=2>/s/&nbsp;&nbsp;William E. Baitinger
      <HR>
       Signature<BR><BR><BR>William E. Baitinger
      <HR>
       Print Name</FONT></TD></TR></TABLE>



</BODY>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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