Data Insight
The Police were, in songwriting terms, Sting's vehicle: he wrote the overwhelming majority of the band's material, including nearly all of its hits, as sole author of both words and music. Drummer Stewart Copeland contributed a steady handful of songs across every album, and guitarist Andy Summers wrote occasionally, but the authorship is heavily concentrated in Sting. The Jagger/Richards comparison doesn't apply here, it is closer to a single dominant writer backed by two occasional contributors.
The Police