What is it forbidden by English Law to do on Christmas Day ?

According to the Holy days and fasting days act of 1551 it states that everyone should attend a Christian church service and must not use any form of transport to get there.

Still looking for 'is' but did find a 'was'. According to http://www.newadvent.org/cathen/03724b.htm

In England, Christmas was forbidden by Act of Parliament in {1644;} the day was to be a fast and a market {day;} shops were compelled to be {open;} plum puddings and mince pies condemned as heathen. The conservatives {resisted;} at Canterbury blood was {shed;} but after the Restoration Dissenters continued to call Yuletide 'Fooltide'.

According to englund.lu.se/resources/englund/2000/no17.phtml [no longer exists] I and millions of other English people have been outlaws without even knowing it. An existing English Law is 'Mince pies can not be eaten on Christmas Day'.

In Ireland, the law states that it is illegal to sell alcohol on Christmas Day. This is the only day of the year when this is true. Irish Law is very much based on English law so this is probably true there too.