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Here are the corrections for the underlined phrases: 1. **Recent researches** → **Recent research** 2. **case of boosting the numbers** → **case for boosting the numbers** 3. **Its methodological was based on** → **Its methodology was based on** 4. **for "their views in how best to prevent crime** → **for "their views on how best to prevent crime** 5. **to the issue** → **of the issue** The corrected passage would read as follows: "Recent research that was carried out for a report by a government agency showed that local police can play an important role in crime prevention. The report makes a strong case for boosting the numbers of community police officers, although it warns against increasing police presence on the streets to an alarming degree. Its methodology was based on a range of interviews asking members of the public for 'their views on how best to prevent crime.' Unfortunately, how to implement this recommendation was out of the scope of the study, but at least it serves a useful purpose in raising awareness of the issue."