One thousand cannabis farms have been raised by West Midlands Police in the last 18 months - an average of 3 or 4 a day.
The latest raid was of a Warehouse in West Bromwich containing a thousand plants with a potential street value of £500,000.
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Outbreaks of rain will move southwards turning clearer and colder.
Heavy showers with a chance of thunder but clearing this evening with clear spells overnight.
Showers are likely to break out which could turn heavy during the afternoon.