DWS Strategic Municipal Income Trust (KSM) Declares a Monthly Distribution

DWS Strategic Municipal Income Trust (NYSE: KSM) declared a monthly distribution of $0.055 per common share, payable on May 30, 2008 to shareholders of record on May 19, 2008. The ex-date is May 15, 2008. The previous monthly distribution was $0.055 per share.

The current distribution rate represents a 5.77% annualized yield based on the closing market price of $11.43 on May 7, 2008 and a 5.67% annualized yield on a closing NAV of $11.64 on the same date.

Future earnings cannot be guaranteed and the Fund's distribution policy is subject to change. For more information on KSM please contact a representative at (800) 349.4281 or visit us on the web at www.cef.dws-scudder.com.

Past performance is no guarantee of future results. Annualized yield is the latest monthly distribution shown as an annualized percentage of net asset value/market price at month end. Annualized yield simply measures the level of distribution and is not a complete measure of performance. Market price, annualized distribution yield, net asset value are historical and will fluctuate and do not guarantee future results.

    NOT FDIC/ NCUA INSURED -- MAY LOSE VALUE -- NO BANK GUARANTEE
    NOT A DEPOSIT -- NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY

DWS Strategic Municipal Income Trust seeks a high level of current income exempt from federal income tax by investing in a diversified portfolio of investment-grade tax-exempt securities. The fund will invest at least 50 percent of its assets in investment-grade municipal securities or unrated municipal securities of comparable quality, and may invest up to 50 percent of its assets in high-yield municipal securities that are below investment grade.

The fund invests in individual bonds whose yields and market values fluctuate, so that your investment may be worth more or less than its original cost. Additionally, although the fund seeks income that is federally tax-free, a portion of the fund's distributions may be subject to federal, state, local and alternative minimum tax. Bond investments are subject to interest-rate risk such that when interest rates rise, the prices of the bonds, and thus the value of the bond fund, can decline and the investor can lose principal value.

Investments in closed-end funds involve risk. Closed-end funds, unlike open-end funds, are not continuously offered. There is a one-time public offering, and once issued, shares of closed-end funds are sold in the open market through a stock exchange. Shares of closed-end funds frequently trade at a discount to net asset value. The price of the Fund's shares is determined by a number of factors, several of which are beyond the control of the Fund. Therefore, the Fund cannot predict whether its shares will trade at, below or above net asset value.

This announcement is not an offer to purchase or the solicitation of an offer to sell shares of the Fund or a prospectus, circular or representation intended for use in the purchase or sale of Fund shares.

DWS Scudder is part of Deutsche Asset Management, which is the marketing name in the US for the asset management activities of Deutsche Bank AG, Deutsche Bank Trust Company Americas, Deutsche Investment Management Americas Inc. and DWS Trust Company. Copyright (C) 2008 DWS Scudder Distributors, Inc.

(MARS 50210 7/07)

SOURCE: DWS Strategic Municipal Income Trust

Media:
Deutsche Bank Press Office, 212-250-7171
or
Investors:
DWS Closed-end Funds, 800-349-4281