One survey records a 47% increase year on year, of non-parental abductions.
However, that seems to be due to a change in recording crime rather than the crime increasing. Of the Police forces asked to account for the rise, non indicated the crime itself had risen significantly. The police responses were:
// Why has non‐parental child abduction increased?
15 police forces were asked to provide further information about why non‐parental child abductions had increased in their area. Responses were received from 13 (many offering more than one reason).
● 11 indicated that improvements in the response to Child Sexual Exploitation (CSE) had contributed to the increase. Greater awareness and training was reported to have led to more offences been reported and to police being more likely to record an offence. Some police forces suggested that a greater use of Child Abduction Warning Notices may have led to an increase in offences recorded.
● Five police forces provided data on the proportion of non‐parental child abductions which involved CSE in 2014/15: four ranged from 65 to 78 per cent; one was 42 per cent. Two police forces provided comparable data for the previous year. One police force reported that the proportion of CSE cases had increased from 37 per cent in 2013/14 to 67 per cent in 2014/15 (albeit with relatively low numbers). The other police force reported an increase from 54 per cent in 2013/14 to 65 per cent in 2014/15 (with much larger numbers).
● Eight police forces suggested improvements in crime recording and greater adherence to the National Crime Recording Standard guidelines had impacted on the number of offences recorded. Many police forces stressed that, as a result, the number of offences better reflects the true scale of the problem. Two police forces suggested that stricter crime recording processes may have ensured that incidents which would previously have not met an ‘evidential’ threshold to be recorded were now been recorded as a crime.
● Two police forces indicated that a recent focus on intervening in cases of forced marriage may have increased the number of non‐parental child abductions recorded, although neither offered any quantitative analysis. //
http://www.childabduction.org.uk/images/Police_Report_2016.pdf