There is no...

 ...worse informer than an informer who denounces the police or openly and publicly questions their motives. You invite these people into your home at your peril. They have the potential to do great harm to you and your family. Their activities range up to and including causing an entirely avoidable death or serious or permanent injury to one of your loved ones.

The informer,one who works for the British,French or German military is bad but the Portuguese and Spanish type are even worse. 

Enforced labour,the work of informers?

Slavery comes from admiration for Ancient Rome and the more obscure doctrines of the Catholic Church. (Any religion which is based on street nuisance and octane-fuelled performance or Orange Order bands is down to the fact that they're all taking drugs and should be under a doctor's care.) 

Some informers for the police are at the highest level of government.Note the activities of Gerry Adams' followers and what happened to Martin Mc Guinness,John Hume and David Trimble, not forgetting one Tony Blair who had open heart surgery at 4 o' clock in the morning. 

....

"Most informers are drawn from the lumpen proletariat or declassed elements.  Only rarely does an educated or person in employment become involved. Even less so does a clergyman make overtures to the police for money for old rope that will be told and retold around pubs for generations. It's money that motivates an informer not social conscience. Mc Guinness and Adams and Fr. Joe Mc Veigh and Halton and one other who your father will tell you about all accepted money for information about yourself. Tell that to that bollocks of a solicitor he wants you to go to, Joseph."