Terry Boyle in for questioning over Gail Vella s murder In a social post, they said: Cuckooing happens in Slough and some residents have already sought help this year after being manipulated into having their address used by criminals and then threatened when they wanted it to stop. The residents most likely to be cuckooed are usually vulnerable and can have learning difficulties like Terry Boyle, but are more likely to have a dependency on drugs or alcohol, or are elderly. Initially visitors are friendly and buy alcohol or drugs for the residents and may use their home as a place where people take drugs, store and sell drugs, stolen goods or weapons.