Mr. Ruffley: To ask the Secretary of State for the Home Department how many offences of bigamy were recorded in each year since 1997; and what percentage of these offences (a) resulted in court proceedings against suspected perpetrators, (b) led to a conviction and (c) resulted in a sanction detection. 
Table 1 gives the number of offences of bigamy recorded by the police and the number detected by means of a sanction detection. Table 2 shows the numbers of defendants proceeded against and found guilty at all courts for bigamy for the years 1997 to 2006, and is taken from the court proceedings database held by the Office for Criminal Justice Reform.
Recorded crime and court proceedings statistics are from two different databases and recorded in quite different ways. Recorded crime data are provided on a financial year basis and count offences whereas court proceedings data are on a calendar year basis and count offenders. Therefore, these two separate data-sets are not directly comparable.
|Table 1: Offences of bigamy recorded by the police and detected by means of a sanction detection1997 to 2006-07
|Number of offences
|Number of sanction detections
|n/a = Not available
|Table 2: Number of defendants proceeded against at magistrates' courts and found guilty at all courts for bigamy offence, England and Wales 1997 to 2006( 1, 2, 3)
|(1) These data are on the principal offence basis. (2) Every effort is made to ensure that the figures presented are accurate and complete. However, it is important to note that these data have been extracted from large administrative data systems generated by the courts and police forces. As a consequence, care should be taken to ensure data collection processes and their inevitable limitations are taken into account when those data are used. (3) The found guilty column can often exceed the number proceeded against when a conviction takes place in a different month to when the proceeding was originally brought, or for a different offence.
Mr. Hoban: To ask the Secretary of State for the Home Department how many (a) burglaries and (b) sanction detections for burglaries there were in each London borough in each of the last 10 years. 
|Table 1 : Offences of burglary recorded and detected by means of a sanction detection by London borough, 2000-01 and 2001-02
Figures in this table were prior to the introduction of the National Crime Recording Standard in April 2002. Figures before and after that date are not directly comparable.