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Seal v Chief Constable of South Wales Police | 
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| Issue:  | 
Whether a failure to obtain leave in accordance with s139 Mental Health Act 1983 before bringing proceedings in respect of acts purportedly done under the Act rendered the subsequent proceedings a nullity | 
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| Court:  | 
Court of Appeal | 
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| Reference:    | 
B2/2004/2284/CCRTF | 
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| Neutral Citation:    | 
[2005] EWCA Civ 586 | 
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| Judge(s):  | 
Clarke and Scott Baker LJJ, Ouseley J | 
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| Date:  | 
19 May 2005 |