"whether the spouse knew about the offence at the time when he or she entered into a family relationship" see Boultif v Switzerland(2001) 33 EHRR 50 , para 48; Mokrani v France(2003) 40 EHRR 123 , para 30. A relationship so entered into may well be imbued with a sense of impermanence. But if months pass without a decision to remove being made, and months become years, and year succeeds year, it is to be expected that this sense of impermanence will fade and the expectation will grow that if the authorities had intended to remove the applicant they would have taken steps to do so. This result depends on no legal doctrine but on an understanding of how, in some cases, minds may work and it may affect the proportionality of removal. 16. Delay may be relevant, thirdly, in reducing the weight otherwise to be accorded to the requirements of firm and fair immigration control, if the delay is shown to be the result of a dysfunctional system which yields unpredictable, inconsistent and unfair outcomes. In the present case the appellant's cousin, who entered the country and applied for asylum at the same time and whose position is not said to be materially different, was granted exceptional leave to remain, during the two-year period which it took the respondent to correct its erroneous decision to refuse the appellant's application on grounds of non-compliance. In the case of JL (Sierra Leone), heard by the Court of Appeal at the same time as the present case, there was a somewhat similar pattern of facts. JL escaped from Sierra Leone with her half brother in 1999, and claimed asylum. In 2000 her claim was refused on grounds of non-compliance. As in the appellant's case this decision was erroneous, as the respondent recognised eighteen months later. In February 2006 the half brother was granted humanitarian protection. She was not. A system so operating cannot be said to be "predictable, consistent and fair as between one applicant and another" or as yielding "consistency of treatment between one aspiring immigrant and another"
"Once it is accepted that unreasonable delay on the part of the Secretary of State is capable of being a relevant factor, then the weight to be given to it in the particular case was a matter for the tribunal"