The Unexpected Suspect — Cecilia Peartree

This is the 16th book in the Pitkirtly Mystery series. A stolen wheelbarrow gets Stewie into trouble through no fault of his own, and before long he is in danger of losing his job and his place at college. Meanwhile, someone takes most of the computers from the Cultural Centre in broad daylight, resulting in an unwelcome encounter for Christopher and the staff with the Office Supplies Investigation Section. Jemima runs another Family History event in the research room and Pitkrtly DNA test results are soon distributed all round Scotland via the magic of the internet. Is there any connection between these apparently random events? If there is, Amaryllis will find it sooner or later.