Her Majesty's Petite Angie(1977)

Her Majesty's Petite Angie is a series following Angie, a sharp young girl who stumbles onto a conspiracy against the Queen of England and prevents disaster through quick thinking. The discovery ignites her passion for investigation, and she soon becomes an unlikely asset to Scotland Yard, helping crack criminal cases across London. Alongside the somewhat bumbling police chief, his charming assistant Michael (whom Angie clearly admires), and her loyal best friend Franck, she pursues gangsters, pickpockets, and dangerous criminals. What begins as a chance encounter transforms into a calling as Angie proves that age is no barrier to solving the city's most puzzling crimes. The series blends mystery, adventure, and coming-of-age charm as an ordinary girl becomes an extraordinary detective.