Half Moon Investigations is a children's crime/comedy drama television series created by the BBC and based upon the novel of the same name by the author Eoin Colfer.

It concerns a schoolboy, Fletcher Moon, who spends much of his spare time solving petty crimes around his school, St Jerome's.

The series was filmed in and around a disused secondary school as well as a Centre for adults with special needs located in Bellshill, North Lanarkshire.

Every week a crime is committed and it is up to Half Moon and his private detective business to find the culprit by analysing a series of clues and witnesses.

Similar to the novel, the TV series has received generally positive reviews both critically and from viewers, with the first three episodes scoring on average 7.7/10 on Internet Movie Database.