Schools minister Nick Gibb wants teachers to have more general search powers covering any item that could cause disorder or pose a threat to safety.
But the debate has been re-opened recently because the government agreed to compensate a Georgia family whose nine-year-old daughter developed autism-like symptoms after a series of shots although officials continue to deny that vaccines cause the disorder.
Adds psychologist Susan Zafarlotfi, a sleep disorder specialist at Hackensack University Medical Center: "This study shows that CBT as compared to pharmacotherapy works much better ... pharmacotherapy is only a crutch, " while CBT aims to fix the distorted behavior and thought patterns that cause the disorder.
"The other part of the story is, if you believe in a cause of your disorder, it becomes the cause, " he said.
There is no one cause of conduct disorder, but the following can increase the risk of a child developing it.
Announcing a series of new measures to MPs on 1 November 2011 the home secretary acknowledged that gangs were not the sole cause of the disorder, "but they were a factor".
The furore over Fast ForWord and whether it is truly treating the causes of dyslexia matters a great deal: more sophisticated treatments of dyslexia will only come with a thorough understanding of the cause of the disorder.
But the virus itself cannot be the sole cause of colony collapse disorder.
ECONOMIST: A virus may help explain colony collapse disorder
Autism is a developmental disorder that can cause problems with social interaction and physical behaviour.
Two years after her wedding and still not pregnant, the 26-year-old visited a gynecologist, who diagnosed her with polycystic ovary syndrome, an endocrine disorder that can cause women to stop ovulating, gain unusual weight, develop irregular periods or skin problems and grow abnormal facial and body hair.
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It could, they suggest, offer an insight into problems like Colony Collapse Disorder, a mysterious cause of mass bee deaths globally.
It may be that women who took the drugs were already suffering from a disorder that would eventually cause them to miscarriage.
If tests confirm you have low testosterone, further testing can determine if a testicular disorder or a pituitary abnormality is the cause.
Rothberg's 14-year-old daughter, the oldest of his five kids, has a mild form of an inherited disease called tuberous sclerosis complex, a relatively rare disorder (50, 000 or so Americans have it) that can cause benign tumors in the heart, kidney, skin, lungs, eyes and brain, where seizures can occur.
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