Roca's most visible recent act was campaigning against a proposed new town of up to 20,000 homes in Adlington, within his Macclesfield constituency. He gathered nearly 19,000 petition signatures, presented them to Parliament, and lobbied government ministers — and in March 2026 the plans were dropped. Local coverage across multiple outlets credited him as instrumental in the outcome, making this the clearest example of constituency casework translating into a tangible result.
In Parliament, Roca is a 100% party-line voter with no rebel votes to date, and his 75% participation rate sits modestly below the Commons average. His speeches cluster around the economy, defence, fiscal policy, and local government — a broad portfolio suggesting a generalist rather than a specialist brief. His stance scores show consistent support for progressive taxation and workers' rights, and low alignment with pro-business or pro-civil-liberties positions. Most notably, he deviates from Labour peers on armed forces welfare — voting with a pro-forces position 80% of the time against the party average of 27% — and supports assisted dying access at a higher rate than most Labour MPs.
Roca sits on the Environment, Food and Rural Affairs Committee, though that subject does not yet dominate his speech activity. His high volume of crime-related news coverage — 40 articles in 90 days — likely reflects local reporting rather than parliamentary initiatives, as crime does not feature heavily in his top speech topics. Voting data is reasonably comprehensive, but the crime coverage warrants watching to see whether it shifts into parliamentary action.