Strong Odours: A persistent, sweet, or sickly pungent smell, especially in the final weeks of the three-month growth cycle.

Covered Windows: Curtains, blinds, or shutters remain permanently closed, even in daylight, or windows are boarded up/covered in foil.

High Condensation: Windows may be constantly misted or have heavy condensation, even during summer, as plants require a greenhouse-like environment.

Heat Indicators: In winter, a lack of snow on the roof when neighbouring houses are covered, or heat radiating from adjoining walls and lofts.

Unusual Activity: Frequent visitors at odd hours, or occupants who are rarely seen except when bringing in soil, fertiliser, or ventilation equipment.

Electrical Red Flags: A constant buzzing noise from fans, or evidence of tampered wiring and cables running into streetlights or bypassed meters. 

Non-Emergency: Call 101 or use the West Midlands Police Live Chat.

Anonymous: Contact Crimestoppers at 0800 555 111