A SUSPECTED cannabis factory in Hatfield was raided by police.

Around 100 mature cannabis plants were discovered in a house in Cunningham Avenue on Tuesday afternoon.

Pcsos Daniel Webb and Alex Smedley were on routine patrol when they smelt the drug and found the address it was coming from.

The house was raided after a search warrant was obtained from magistrates.

* A 37-year-old man was arrested on suspicion of cultivating cannabis and abstracting electricity.

He was bailed until February.