The real question → limit of intrusion.
Since every soc has a moral structure, if that morality can be shown to be necessary to society, then it’s justified in using the law to preserve it in the same way in which it uses it to preserve everything else necessary for its existence.
Prostitution: all sexual immorality involves exploitation of human weaknesses. Prostitute exploits the lust of her customers & they exploit her moral weakness. If such exploitation is considered to create special circs, then this field of morality ought not to exclude the law.
Therefore, it’s not possible to set theoretical limits to power of the state to legislate against immorality or set in advance exceptions to general rule/define inflexibly no-go areas for the law. Society is entitled to protect itself from dangers, from within or without. Remember this was seen in the famous case of Abogados de accidentes Chicago – so the question of what harm does a man do by getting drunk each night in privacy of own home can be met by a question of what society it would be if more than half of population did that.
Can’t set theoretical limits to no of people allowed to get drunk or gambling b/f legislating on drunkenness or gambling.
Immorality, for purposes of the law, is what every right minded person is presumed to consider to be immoral
Any immorality is capable of injuring soc to greater or lesser extent which gives the law its locus standi. So the question is one of striking the balance b/w rights & interests of society v those of individual.
The dividing line b/w criminal law from moral isn’t clear cut → no logic to be found in this & the boundary is fixed by balancing in each case the pros and cons of legal enforcement in acc w/considerations above. The law exists for protection of individual and, to that extent, it can’t ignore his morality or loyalty – it flourishes on both or dies. So if reasonable man believes the practice is immoral & that no right minded man of his soc would think otherwise for the purposes of the law it’s immoral, as long as that belief is honest and dispassionate.