1.   Boston police would not say how many offenders have registered so far.

2.   All states require released sex offenders to register their whereabouts.

3.   But the database is only as accurate as the information supplied by the law enforcement agencies with whom sex offenders must register each year or when they move.

4.   Connecticut requires sex offenders to register with state officials but provides their names only to police and related personnel.

5.   He said it had left meaningless the provision of the law that requires sex offenders to register their names, addresses and other personal information with the police.

6.   It also was the first state to require sex offenders to register with law enforcement agencies after their releases, as Missouri and Kansas now do.

7.   Offenders also must register as sex offenders.

8.   Offenders did not register as quickly as expected, law enforcement authorities lacked the resources to find and punish those who failed to.

9.   --Require sex offenders to register with local police.

10.   Sex offenders must still register with the state, and some will have their names and pictures posted on the Internet.