Tags are keywords. I put tags on every post to help you find the content you want. Tags may be people (Dominic Raab, say), organisations (The Howard League, PRT), themes (women offenders, homelessness) or specific items (heroin, racial disparity, ROTL). If you’re looking to research a particular issue, they can be invaluable.
I recently evaluated a pilot project which used online surveys to get local peoples’ views on policing priorities (A virtual approach can mean real engagement).