I believe the goal of British Law is to get information out of the suspect before having a lawyer present. The know that many people who are arrested do not have enough money to afford lawyer's so if they can get them say stuff that may hurt the suspects case or for them not to say anything they would be saving money from lawyer fee's. I may be way off with this but this is what I think. A police officer in the Unites States says "You have the right to remain silent. Anything you say can be used against you in a court of law. You have the right to have an attorney present now and during any future questioning. If you cannot afford an attorney, one will be appointed to you free of charge if you wish. Do you understand what has been read to you?"
The differences between the US and Britain is that US is saying anything you use will be held against you and Britain is saying if you choose to stay silent it may hurt you in your court room trial. Personally I prefer the US version Britain's version is a little confusing.
I believe there are way too many lawsuits in the US. I mean you can sue from slipping down some stairs to eating food from a restaurant and claiming there food made them sick. I blame the individuals because most individuals can not afford lawyers and there high fee's I think the only way to help with the number of lawsuits is to start charging a large "deposit" in order to file a lawsuit in order to keep the numbers of lawsuits down. If they win the case you get your deposit back if not the deposit goes to the court. This will make sure people are thinking smart about what to sue over and give them a second to ask themselves is this something I really need to take to court or can I handle on my own.