<DOCUMENT>
<TYPE>EX-24.TXT
<SEQUENCE>2
<FILENAME>ex24sullivan.txt
<DESCRIPTION>SULLIVAN POWER OF ATTORNEY
<TEXT>
LIMITED POWER OF ATTORNEY FOR
SECTION 16 REPORTING OBLIGATIONS

        Know all by these presents, that the undersigned hereby
makes, constitutes and appoints each of Anthony S. Chilton,
Michael R. Cox 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:

        (1)         prepare, execute, acknowledge, deliver and
file Forms 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 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");

        (2)         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

        (3)         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.

        The undersigned acknowledges that:

        (1)         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;

        (2)         any documents prepared and/or executed by any
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;

        (3)         neither the Company nor any such attorney-in-
fact assumes (i) any liability for the undersigned's
responsibility to comply with the requirements 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

        (4)         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.

        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.

        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.

        IN WITNESS WHEREOF, the undersigned has caused this
Limited Power of Attorney to be executed as of this 29th day of
January, 2010.


/s/ A. Charlene Sullivan
___________________________________
A. Charlene Sullivan



STATE OF INDIANA		)
					)  SS:
COUNTY OF	TIIPECANOE		)
Subscribed to and sworn before me, a Notary Public, in and for
said County and State, this 29th day of January, 2010.
/s/ Anne E. Martin
Signature

Anne E. Martin
Printed Notary Public


My Commission Expires:			County of Residence:
10/20/17					Tippecanoe


</TEXT>
</DOCUMENT>
