### **Exhibit 31.1**

 

### **CERTIFICATION**

 

I, Kevin J. Acker,certify that:

 

1)              I have reviewed this annual report onForm 10-K of West Suburban Bancorp, Inc.;

 

2)              Based on my knowledge, this annual reportdoes not contain any untrue statement of a material fact or omit to state amaterial fact necessary to make the statements made, in light of circumstancesunder which such statements were made, not misleading with respect to theperiod covered by this annual report;

 

3)              Based on my knowledge, the financialstatements, and other financial information included in this annual report,fairly present in all material respects the financial condition, results ofoperations and cash flows of the registrant as of, and for, the periodspresented in this annual report;

 

4)              The registrant’s other certifying officerand I are responsible for establishing and maintaining disclosure controls andprocedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) andinternal control over financial reporting (as defined in Exchange Act Rules13a-15(f) and 15d-15(f)) for the registrant and we have:

 

a)                    designed such disclosure controlsand procedures, or caused such disclosure controls and procedures to bedesigned under our supervision, to ensure that material information relating tothe registrant, including its consolidated subsidiaries, is made known to us byothers within those entities, particularly during the period in which thisannual report is being prepared;

 

b)                   designed such internal control overfinancial reporting, or caused such internal control over financial reportingto be designed under our supervision, to provide reasonable assurance regardingthe reliability of financial reporting and the preparation of financialstatements for external purposes in accordance with generally acceptedaccounting principles;

 

c)                    evaluated the effectiveness of theregistrant’s disclosure controls and procedures and presented in this annualreport our conclusions about the effectiveness of the disclosure controls andprocedures, as of the end of the period covered by this annual report based onsuch evaluation; and

 

d)                   disclosed in this report any changein the registrant’s internal control over financial reporting that occurredduring the registrant’s most recent fiscal quarter (the registrant’s fourthfiscal quarter in the case of an annual report) that has materially affected,or is reasonably likely to materially affect, the registrant’s internal controlover financial reporting; and

 

5)              The registrant’s other certifying officerand I have disclosed, based on our most recent evaluation of internal controlover financial reporting, to the registrant’s auditors and the audit committeeof the registrant’s board of directors (or persons performing the equivalentfunction):

 

a)                    all significant deficiencies andmaterial weaknesses in the design or operation of internal control overfinancial reporting which are reasonably likely to adversely affect theregistrant’s ability to record, process, summarize and report financialinformation; and

 

b)                   any fraud,whether or not material, that involves management or other employees who have asignificant role in the registrant’s internal control over financial reporting.

 

 
| Date: March 14, 2006                 |   |
|--------------------------------------|--------|
|                                 |   |
| /s/ Kevin J. Acker                   |   |   |
| Kevin J. Acker                       |   |
| Chairman and Chief Executive Officer |   |
|                                      |        |  |

 

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