Policing Info World: conference review

By Sancho McCann · , edited:

On May 23, I at­tend­ed a free, one-day con­fer­ence on data, law en­force­ment, and sur­veil­lance: “Policing Info World”. It was host­ed by the BC Freedom of Information and Privacy Association (BC FIPA), the BC Civil Liberties Association (BCCLA), and Kwantlen Polytechnic University (KPU).

There were four pan­els: one on sur­veil­lance, one on pre­dic­tive and al­go­rith­mic polic­ing, one on the ide­al of bias-free polic­ing, and one on search­es for data when cross­ing the bor­der.

On surveillance

The pan­el:

On this pan­el, Michelle Davey pre­sent­ed the VPD’s plans for a drone/un­crewed aer­i­al ve­hi­cle. They are still de­vel­op­ing the pol­i­cy that will con­trol its use, but she told us that it will pri­mar­i­ly be used for emer­gency re­sponse and for gath­er­ing data to an­a­lyze an ac­ci­dent or crime that has al­ready hap­pened, es­pe­cial­ly ve­hi­cle col­li­sions. She said that it would be also used dur­ing large pub­lic events to mon­i­tor un­law­ful gath­er­ings of peo­ple (men­tion­ing the 2011 Stanley Cup Riots as an ex­am­ple where this would have been use­ful). Each use of the drone will re­quire high-lev­el ap­proval and they will doc­u­ment and pub­lish each use of the drone.

Josh Patterson ex­pressed sup­port for most uses of the drone that Davey men­tioned, with the ex­cep­tion of the po­ten­tial­ly in­dis­crim­i­nate wide-area sur­veil­lance at pub­lic events. When peo­ple ex­pect to be sur­veilled, they may be less like­ly to show up at an event they would have oth­er­wise been present for, even when their pres­ence would have been whol­ly peace­ful and law­ful.

I hope that that VPD’s drone pol­i­cy will dis­close the fac­tors that they will use to de­ter­mine whether a pub­lic event justifies the use of a drone for pre-emp­tive mon­i­tor­ing and what is done with the data in the case that no crim­i­nal in­ves­ti­ga­tions fol­low from the event.

The VPD also al­ready op­er­ates a he­li­copter. While the use of a drone may bring cer­tain pri­va­cy is­sues to the fore­front and may sub­ject more peo­ple more fre­quent­ly to sur­veil­lance, it is not different in kind from that which is al­ready pos­si­ble.

On predictive policing

The pan­el:

Ryan Prox pre­sent­ed how the VPD uses pre­dic­tive polic­ing to in­form where they should place officers. They use pre­dic­tive polic­ing only for the most pat­terned and pre­dictable crime: prop­er­ty offenses. You can see the data that they use as in­put to the sys­tem at ge­o­dash.vpd.ca.

Of course, po­lice pres­ence it­self would in­crease the ob­ser­va­tions of crime in a par­tic­u­lar area, thus po­ten­tial­ly cre­at­ing a feed­back cy­cle where the sys­tem would sug­gest de­ploy­ments to ar­eas where crime had been ob­served by officers, be­cause that’s where they had been de­ployed in the past. To avoid this, the sys­tem does not in­clude prop­er­ty crime that was re­port­ed by an officer; it only bases its pre­dic­tions on prop­er­ty crime that is re­port­ed by the prop­er­ty own­er.

The sys­tem also isn’t used for pre­dic­tive de­ploy­ments to the down­town east­side or in ar­eas around tem­po­rary mod­u­lar hous­ing. These ar­eas al­ready have their own com­mu­ni­ty-polic­ing pro­grams and officers that are spe­cial­ly trained to work in these ar­eas and with these com­mu­ni­ties.

There are risks in­her­ent in off-load­ing our de­ci­sion-mak­ing to a math­e­mat­i­cal/al­go­rith­mic process. It seemed like the VPD is aware of this and ap­proach­ing the is­sue thought­ful­ly. Prox point­ed to the Federal Treasury Board’s Algorithmic Impact Assessment which, while not legal­ly ap­plic­a­ble out­side of the fed­er­al gov­ern­ment, gives a use­ful frame­work for man­ag­ing the hu­man risks of al­go­rith­mic de­ci­sion-mak­ing in gen­er­al. For ex­am­ple, if an au­to­mat­ed de­ci­sion will “like­ly have very high im­pacts on […] the rights of in­di­vid­u­als or com­mu­ni­ties”, then the gov­ern­ment must (among oth­er things) ob­tain peer re­view by non-gov­ern­ment, pub­lish de­scrip­tions of the sys­tem and train­ing data, re­quire the final de­ci­sion to be made by a hu­man, and con­duct on­go­ing mon­i­tor­ing to de­tect un­in­ten­tion­al out­comes.

On the ideal of bias-free policing

The pan­el:

Dylan Mazur dis­cussed street checks and their place on the spec­trum of po­lit­i­cal vi­o­lence as a means to dis­or­ga­nize so­cial move­ments. (In June 2018, the Union of British Columbia Indian Chiefs and the BCCLA filed a com­plaint with the Office of the Police Complaint Commissioner re­gard­ing the over-rep­re­sen­ta­tion of Indigenous and Black peo­ple in street checks con­duct­ed by the VPD.)

Michelle Cameron talked about her ex­pe­ri­ence as an an­a­lyst and in­ves­ti­ga­tor and dis­cussed the need for good data in or­der to de­tect ex­pres­sions of bias and mon­i­tor im­prove­ment (or lack there­of).

The pan­el talked about the difficulty in ob­tain­ing ac­cu­rate race-based data in the con­text of a street check. The cat­e­gories that peo­ple slot them­selves into on a cen­sus don’t match how they might iden­ti­fy them­selves to an officer af­ter an ad­ver­sar­i­al, pow­er-im­bal­anced en­counter.

This need for data is con­sis­tent with many of the Calls to Action from the Truth and Reconciliation Commission of Canada which call for data on crim­i­nal vic­tim­iza­tion and to “mon­i­tor and eval­u­ate progress” in elim­i­nat­ing over-rep­re­sen­ta­tion of Indigenous peo­ple in cus­tody, for ex­am­ple.

On searches for data when crossing the border

The pan­el:

Peter Edelmann pre­sent­ed the state of the law on data search­es when com­ing into Canada. The pow­er for these search­es comes from cus­toms and im­mi­gra­tion statutes that give the Canadian Border Services Agency (CBSA) height­ened abil­i­ty to search for ma­te­r­i­al that might re­veal cus­toms- or im­mi­gra­tion-re­lat­ed offences.

It is clear that CBSA re­quires no rea­son­able grounds (as would nor­mal­ly be re­quired for a search) to search your goods at the bor­der. And “goods, for greater cer­tain­ty, in­cludes con­veyances, an­i­mals and any doc­u­ment in any form.”

Less clear is how the gov­ern­ment is to treat the data that is on your phone. Is it a ‘good’? All we have to­day are some low­er court de­ci­sions that say the data is a ‘good’ for the pur­pos­es of the Customs Act.

Edelmann not­ed that Canada doesn’t have a con­sis­tent ap­proach to data that cross­es the bor­der. Data can cross the bor­der over the in­ter­net and data can cross the bor­der on a cell phone. The data car­ried over the bor­der on a cell phone is mi­nus­cule com­pared to the data cross­ing over the in­ter­net. But the gov­ern­ment treats these two streams very differently. He ar­gued that the gov­ern­ment needs to clar­i­fy with leg­is­la­tion how data should be reg­u­lat­ed and then do that uni­form­ly, pre­dictably, and trans­par­ent­ly, rather than shoe­horn­ing our new elec­tron­ic de­vices into old cat­e­gories of search­es as a way of get­ting at only a tiny frac­tion of data that is cross­ing the bor­der.

Meghan McDermott pre­sent­ed por­tions of the Electronic Devices Privacy Handbook: A Guide to Your Rights at the Border, pub­lished by the BCCLA and the Canadian Internet Policy and Public Interest Clinic (CIPPIC) in 2018.

The main take­away for me was the lack of trans­paren­cy from the CBSA about their bor­der-search prac­tices, es­pe­cial­ly re­gard­ing the National Targetting Program. What might in­crease the like­li­hood that your elec­tron­ic de­vice is searched at the bor­der? It is im­pos­si­ble to know, but court cas­es and ac­cess-to-in­for­ma­tion re­quests pro­vide some hints. The BCCLA/CIPPIC hand­book identifies a list of po­ten­tial fac­tors, in­clud­ing hav­ing “ani­me and man­ga” or be­ing “a sin­gle man trav­el­ling alone.”

Connection with the history of government searches

I’m read­ing a book right now on the his­to­ry of pro­tec­tions against search and seizure in England and the US. A theme that comes up time and time again is how pop­u­lar op­po­si­tion to gov­ern­ment search­es did not crys­tal­lize un­til the prac­tice be­came op­pres­sive to the right group of peo­ple. The law didn’t sud­den­ly give the gov­ern­ment more search pow­ers be­tween 1580 and 1642, but a new op­po­si­tion to gov­ern­ment search­es be­came ap­par­ent dur­ing that time. What changed? Instead of the gov­ern­ment search­ing only the low­er class­es and “va­grants in par­tic­u­lar”, search­es start­ed to be “the fre­quent ex­pe­ri­ence of the many.” And the Kings were us­ing these new tac­tics as tools for dis­or­ga­niz­ing so­cial struc­tures and po­lit­i­cal op­po­si­tion. The fol­low­ing are some quotes from the book (em­pha­sis mine).

[T]he rea­sons that the Tudors spon­sored the new gen­er­al privy search were as much po­lit­i­cal as so­cial. Henry VII and his suc­ces­sors want­ed to rid England not only of its hu­man eye­sores but of the “sedi­tions and re­bel­li­ons” that va­grancy bred. Making the hous­es of their sub­jects less se­cure against search­es was the Tudors’ method of mak­ing their throne more se­cure.

The rea­sons that Englishmen wait­ed near­ly a cen­tu­ry af­ter the gen­er­al search be­came rou­tine to con­demn it arose from the com­part­men­tal­ized se­quence in which they re­al­ized its im­pact and the so­cial val­ues by which they gauged that im­pact. Although privy search­es were gen­er­al, they aimed at low­ly, il­lit­er­ate beg­gars and va­grants. Articulate Englishmen, there­fore, did not ex­pe­ri­ence those search­es or sym­pa­thize with those who did, es­pe­cial­ly be­cause most privy search­es oc­curred in barns, lodg­ing hous­es, and inns rather than in pri­vate dwellings. Social at­ti­tudes to­ward va­grants as an un­wor­thy un­der­class de­layed re­sent­ment of such search­es un­til oth­er more es­teemed mem­bers of so­ci­ety were sub­ject­ed to them. […]

Mass protests against the mech­a­nism of search and seizure start­ed in the 1580s be­cause of fur­ther changes in it and in the iden­ti­ty of the types of per­sons that it affected. Having de­mon­strat­ed its efficacy as an an­ti­va­grancy de­vice, the gen­er­al search was an ob­vi­ous can­di­date for ex­ten­sion to the fur­ther pur­pose of crush­ing re­li­gious and po­lit­i­cal dis­sent, and there too, it pro­duced spec­tac­u­lar re­sults against Jesuits and Protestant rad­i­cals alike.

The present-day coun­ter­part [of va­grancy search­es] might be week­ly, noc­tur­nal in­spec­tions of all liquor stores, room­ing hous­es, and video-game par­lors for drunks, drug-ad­dicts, dere­licts, and run­away ado­les­cents.

(I would add street-checks to this list.)

The no­bil­i­ty and dis­sent­ing cler­ics, the ar­tic­u­late and ed­u­cat­ed groups most ca­pa­ble of protest­ing vi­o­lent search­es be­gan to ex­pe­ri­ence them rou­tine­ly for the first time in the last two decades of the six­teenth cen­tu­ry.

It’s im­por­tant to un­der­stand what the law al­lows our gov­ern­ment to do, re­gard­less of whether ac­tu­al prac­tice is cur­rent­ly con­strained by pol­i­cy, prac­ti­cal­i­ty, or dis­cre­tion.