Radar & speed camera detectors

Q: My question is regarding radar & speed camera detectors. Recently traffic police in Saudi Arabia has introduced a new system for traffic monitoring known as SAHER. In this system they have installed speed cameras at different locations inside the city by which they are monitoring speed of vehicles and generating speed tickets for defaulters. In addition if the defaulter is unable to pay the amount within 1 month his fine is doubled, similarly if he fails to pay the fine it is trippled in the third month (the maximum is number of times the fine is multiplied is just three). The voilator recvs an sms from the traffic police on the next day of the voilation and then he has to arrange the amount with in a month to avoid it being doubled, whereas earlier the rule was that whenever a person applies for IQAMA renewel or exit re-entry he has to clear all govt dues including any voilations on him, and the voilation amount remained the same. Now some people have started to bring radar and speed camera detectors in saudia tgo avoid being caught and getting speed fines, although it is illegal to buy/sell and use in Saudi Arabia but still we have some people selling it in the market. As we know most of us reduce speed or put on our seat belts when we see the check post from faraway or we know that there are cameras or check posts in the area we are moving towards. Radar detectors are also doing the same job they tell us well in advance that there are speed cameras or police radars 500-800 meters ahead, so that we can slow down and drive carefully and avoid being caught by the police and getting heavy fines the question is that radar detectors are doing nothing but just letting us drive more safely they are not blocking police radars, nither are they blocking the lasers. they are just giving us advance safety precautions so that we can slow down our car. put on the seat belt and drive carefully and avoid speed and other voilation tickets. So can we use these devices for our personal use, and can we trade these devices, if we buy from outside the kingdom and sell them in saudi arabia will this earning be jaiz?

Organ donation

Q: I want to know if organ donation is permissible in Islam. Is there any type of situation in which it will be premissible? The example given to me: someones brother is very ill-his kidneys have failed & doctors say he needs at least one kidney donated to him. Can this person donate one kidney to his brother?

Irregular cycle

Q: I have an irregular cycle, or rather haven't made a proper recorder of my dates, until recently. Since July this year I've made a sincere effort to monitor my haidh. I've notice that I usually have my haidh for 3-4 days each month with paak days of 18-20 days. However sometimes I have absolutely no discharge after 3 days and I start to spot within the 10 day period for another day maybe 2 or 3. Is this haidh or istihaiza as it is not my habit? I am on a pill. I am very concerned as I am leaving for Haj and not sure how this would affect my Salaah and tawaaf e-Ziyaarat. Do I follow my new habit or that before the pill?

Remarrying after one irrevocable divorce

Q: I was married for 19 years and having problems. I decided to take a second wife but was not happy about divorcin the first wife. My second wife made it condition if she marries me I must divorce the first wife. Her family put a lot of pressure on divorce. I got married to her and divorced the first wife after one week. I have four children. After being married for approximatly for 3 weeks i highly regret divorcin my first wife and consequently have lost all feelings for the second wife. I have no desire of stayin married. My second wife also has 3 children. I issued one irrevocable talaq to my first wife. I desperately need your urgent advice.