Which sentence is most clearly written?

The first sentence, "Community engagement plays a significant role in the success of police work," is clearer because it presents its main idea in a straightforward manner. It uses direct language to convey the importance of community engagement in police work without unnecessary complexity. The phrase "plays a significant role" is concise and easily understood, allowing the reader to quickly grasp the relationship between community engagement and the effectiveness of police efforts.

In contrast, the second sentence introduces redundancy with the expression "successfully engaging with the community is significantly important," which complicates the message. The use of both "successfully" and "significantly" adds unnecessary qualifiers that can detract from the main point. The phrasing is less direct, which may lead to confusion and a more difficult reading experience. Essentially, the first sentence conveys its message with clarity and simplicity, making it the better choice.