This is an announcement for the paper "A bicommutant theorem for dual Banach algebras" by Matthew Daws. Abstract: A dual Banach algebra is a Banach algebra which is a dual space, with the multiplication being separately weak$^*$-continuous. We show that given a unital dual Banach algebra $\mc A$, we can find a reflexive Banach space $E$, and an isometric, weak$^*$-weak$^*$-continuous homomorphism $\pi:\mc A\to\mc B(E)$ such that $\pi(\mc A)$ equals its own bicommutant. Archive classification: math.FA Mathematics Subject Classification: 46H05, 46H15, 47L10 Remarks: 6 pages The source file(s), dba.tex: 23544 bytes, is(are) stored in gzipped form as 1001.1146.gz with size 8kb. The corresponding postcript file has gzipped size 84kb. Submitted from: matt.daws@cantab.net The paper may be downloaded from the archive by web browser from URL http://front.math.ucdavis.edu/1001.1146 or http://arXiv.org/abs/1001.1146 or by email in unzipped form by transmitting an empty message with subject line uget 1001.1146 or in gzipped form by using subject line get 1001.1146 to: math@arXiv.org.