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<HEAD>
<Title>Bioanalytical Systems, Inc. - Form S-8 - Director Stock Option Plan</title></head>
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<P align=right><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Registration No. 333-103716
<hr noshade></font></P>
<br>

<p align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=3>
<b>UNITED STATES</b><br>
<b>SECURITIES AND EXCHANGE COMMISSION</b></FONT><br>
<FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<b>Washington, D.C. 20549</b><br><br></font></P>

<hr width=30% noshade>

<p align=center><FONT FACE="Times New Roman, Times, Serif" size=3>
<b>AMENDMENT NO. 1 TO</b><br>
<b>FORM S-8</b><BR>
<b>REGISTRATION STATEMENT UNDER</b><BR>
<b>THE SECURITIES ACT OF 1933</b></font></p>
<hr width=30% noshade>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>
<b><u>BIOANALYTICAL SYSTEMS, INC.</u></b><br>
<small><small>(Exact Name Of Registrant As Specified In Its Charter)</small></small>
</font></P>

<table width=100% border=0>
<tr valign=bottom>
<td width=50% align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<u><b>Indiana</b></u></font></td>
<td>&nbsp;</td>
<TD width=50% ALIGN=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<b><U>35-1345024</U></b></font></td></TR>

<TR VALIGN=TOP><TD ALIGN=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<small>(State or other jurisdiction of incorporation or organization)</small></font></TD>
<td>&nbsp;</td>
<td align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<small>(IRS Employer Identification No.)</small></font></td></TR>
</table>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<b>2701 Kent Avenue</b><BR>
<b><U>West Lafayette, Indiana 47906</U></b><BR>
<small>(Address of Principal Executive Offices)</small><BR>
</font></P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<b>1997 Bioanalytical Systems, Inc. Outside</b><BR>
<b><U>Director Stock Option Plan</U></b><BR>
<small>(full title of the plan)</small></font></P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<b>Douglas P. Wieten</b><BR>
<b>Vice President-Finance, Chief Financial</b><BR>
<b>Officer and Treasurer</b><BR>
<b>Bioanalytical Systems, Inc.</b><BR>
<b>2701 Kent Avenue</b><BR>
<b><U>West Lafayette, Indiana 47906</U></b><BR>
<small>(Name and address of agent for service)</small>
</font></P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<b><U>(765) 463-4527</U></b><BR>
<small>(Telephone number, including</small><BR>
<small>area code, of agent for service)</small>
</font></P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Copies to:<BR></font></P>

<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<b>Stephen J. Hackman</b><BR>
<b>Ice Miller</b><BR>
<b>One American Square, Box 82001</b><BR>
<b>Indianapolis, Indiana 46282</b><BR></font></P>
<br>
<hr noshade>

<PAGE>

<P align=justify><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
This  Amendment  No. 1 to Form S-8 is being filed for the  purpose of  including
additional exhibits not filed with the original filing.
</FONT></P>


<PAGE>


<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=3>
<U>SIGNATURES</U></FONT></H1>

<P align=justify><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Pursuant to the  requirements  of the  Securities  Act of 1933, as amended,  the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this Registration
Statement  to be  signed  on  its  behalf  by  the  undersigned  thereunto  duly
authorized,   in  the   City  of  West   Lafayette,   State   of   Indiana,   on
March 11, 2003.
</FONT></P>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD WIDTH=60%>&nbsp;</TD>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
BIOANALYTICAL SYSTEMS, INC.<BR>
<BR>
<BR>
<BR>
By:&nbsp;&nbsp;&nbsp;/s/&nbsp;&nbsp;Peter T. Kissinger<HR>
Peter T. Kissinger, President and<BR>
Chief Executive Officer<BR>
</FONT>
</TD>
</TR>
</TABLE>
<BR>
<bR>


<P align=justify><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Pursuant to the  requirements of the Securities Act of 1933,  this  Registration
Statement has been signed by the following  persons in the capacities  indicated
on March 11, 2003.
</FONT></P>
<br>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
/s/ Peter T. Kissinger<HR>
Peter T. Kissinger</FONT></TD>
<td width=20%>&nbsp;</td>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Chairman, President, Chief Executive Officer,<br>
and Director (Principal Executive Officer)</font></td>
</tr>
</table>
<br>
<br>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
/s/ Douglas P. Wieten*<HR>
Douglas P. Wieten</FONT></TD>
<td width=20%>&nbsp;</td>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Vice President-Finance, Chief Financial Officer<br>
and Treasurer (Principal Financial Officer and<br>
Principal Accounting Officer)</font></td>
</tr>
</table>
<br>
<br>

<PAGE>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
/s/ Ronald E. Shoup*<HR>
Ronald E. Shoup</FONT></TD>
<td width=20%>&nbsp;</td>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Director</font></td>
</tr>
</table>
<br>
<br>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
/s/ Candice B. Kissinger*<HR>
Candice B. Kissinger</FONT></TD>
<td width=20%>&nbsp;</td>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Director</font></td>
</tr>
</table>
<br>
<br>


<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
/s/ William E. Baitinger*<HR>
William E. Baitinger</FONT></TD>
<td width=20%>&nbsp;</td>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Director</font></td>
</tr>
</table>
<br>
<br>


<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
/s/ John A. Kraeutler*<HR>
John A. Kraeutler</FONT></TD>
<td width=20%>&nbsp;</td>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Director</font></td>
</tr>
</table>
<br>
<br>


<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
/s/ W. Leigh Thompson*<HR>
W. Leigh Thompson</FONT></TD>
<td width=20%>&nbsp;</td>
<TD WIDTH=40%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Director</font></td>
</tr>
</table>
<br>
<br>

<P align=justify><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
*Signed by Peter T. Kissinger, Attorney-in-fact</font></P>

<PAGE>

<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
BIOANALYTICAL SYSTEMS, INC.</FONT></H1>

<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
FORM S-8</FONT></H1>

<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
INDEX TO EXHIBITS</FONT></H1>
<br>
<br>


<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD width=25%><div align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Exhibit Number<br>
Assigned in<br>
Regulation S-K<br>
<U>Item 601</U></font></div></td>
<td width=10%>&nbsp;</td>
<TD valign=bottom width=65%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<U>Description of Exhibit</U>
</FONT></TD>
</TR>
</TABLE>
<br>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD width=25%><div align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
(4)</font></div></td>
<TD width=10%><div align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
&nbsp;</font></div></td>
<TD width=65%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Not applicable</font></td></tr>
</table>
<br>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD valign=top width=25%><div align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
(5)</font></div></td>
<TD valign=top width=10%><div align=left><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
5.01</font></div></td>
<TD width=65%><div align=justify><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Opinion of Ice Miller as to the legality of the securities  being registered and
consent to use of the opinion in this registration statement</font></div></td></tr>
</table>
<br>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD valign=top width=25%><div align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
(15)</font></div></td>
<TD valign=top width=10%><div align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
&nbsp;</font></div></td>
<TD width=65%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Not applicable</font></td></tr>
</table>
<br>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD valign=top width=25%><div align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
(23)</font></div></td>
<TD valign=top width=10%><div align=left><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
23.01</font></div></td>
<TD width=65%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Consent of Ernst &amp; Young</font></td></tr>
</table>
<br>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD valign=top width=25%><div align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
&nbsp;</font></div></td>
<TD valign=top width=10%><div align=left><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
23.02</font></div></td>
<TD width=65%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Consent of Ice Miller (included in Exhibit 5.01)</font></td></tr>
</table>
<br>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD valign=top width=25%><div align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
(24)</font></div></td>
<TD valign=top width=10%><div align=left><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
24.01</font></div></td>
<TD width=65%><div align=justify><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Power of Attorney (incorporated by reference to the signature page found on page
4 of the original filing)</font></div></td></tr>
</table>
<br>

<TABLE WIDTH=100% CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD width=25%><div align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
(99)</font></div></td>
<TD width=10%><div align=center><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
&nbsp;</font></div></td>
<TD width=65%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
Not applicable</font></td></tr>
</table>

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</HTML>
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Bioanalytical Systems, Inc. - Form S-8 - Director Stock Option Plan
Registration No. 333-103716
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
AMENDMENT NO. 1 TO
FORM S-8
REGISTRATION STATEMENT UNDER
THE SECURITIES ACT OF 1933
BIOANALYTICAL SYSTEMS, INC.
(Exact Name Of Registrant As Specified In Its Charter)
Indiana
35-1345024
(State or other jurisdiction of incorporation or organization)
(IRS Employer Identification No.)
2701 Kent Avenue
West Lafayette, Indiana 47906
(Address of Principal Executive Offices)
1997 Bioanalytical Systems, Inc. Outside
Director Stock Option Plan
(full title of the plan)
Douglas P. Wieten
Vice President-Finance, Chief Financial
Officer and Treasurer
Bioanalytical Systems, Inc.
2701 Kent Avenue
West Lafayette, Indiana 47906
(Name and address of agent for service)
(765) 463-4527
(Telephone number, including
area code, of agent for service)
Copies to:
Stephen J. Hackman
Ice Miller
One American Square, Box 82001
Indianapolis, Indiana 46282
This  Amendment  No. 1 to Form S-8 is being filed for the  purpose of  including
additional exhibits not filed with the original filing.
SIGNATURES
Pursuant to the  requirements  of the  Securities  Act of 1933, as amended,  the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this Registration
Statement  to be  signed  on  its  behalf  by  the  undersigned  thereunto  duly
authorized,   in  the   City  of  West   Lafayette,   State   of   Indiana,   on
March 11, 2003.
BIOANALYTICAL SYSTEMS, INC.
By:   /s/  Peter T. Kissinger
Peter T. Kissinger, President and
Chief Executive Officer
Pursuant to the  requirements of the Securities Act of 1933,  this  Registration
Statement has been signed by the following  persons in the capacities  indicated
on March 11, 2003.
/s/ Peter T. Kissinger
Peter T. Kissinger
Chairman, President, Chief Executive Officer,
and Director (Principal Executive Officer)
/s/ Douglas P. Wieten*
Douglas P. Wieten
Vice President-Finance, Chief Financial Officer
and Treasurer (Principal Financial Officer and
Principal Accounting Officer)
/s/ Ronald E. Shoup*
Ronald E. Shoup
Director
/s/ Candice B. Kissinger*
Candice B. Kissinger
Director
/s/ William E. Baitinger*
William E. Baitinger
Director
/s/ John A. Kraeutler*
John A. Kraeutler
Director
/s/ W. Leigh Thompson*
W. Leigh Thompson
Director
*Signed by Peter T. Kissinger, Attorney-in-fact
BIOANALYTICAL SYSTEMS, INC.
FORM S-8
INDEX TO EXHIBITS
Exhibit Number
Assigned in
Regulation S-K
Item 601
Description of Exhibit
(4)
Not applicable
(5)
5.01
Opinion of Ice Miller as to the legality of the securities  being registered and
consent to use of the opinion in this registration statement
(15)
Not applicable
(23)
23.01
Consent of Ernst & Young
23.02
Consent of Ice Miller (included in Exhibit 5.01)
(24)
24.01
Power of Attorney (incorporated by reference to the signature page found on page
4 of the original filing)
(99)
Not applicable